In-System - User contributions [en]

Main Page

2026-06-07T22:04:20Z

WikiSysop: /* Welcome to IN-SYSTEM */

= '''Welcome to IN-SYSTEM''' =

<big>This is a near-future hard-science-adjacent roleplaying game set in our own lovely solar system in year 2158. Humanity has established permanent presence on Luna, Earth-Luna Lagrange points, and Mars. Colonies, stations, and outposts on The Belt and distant moons provide harbor for intrepid miners and religious sects. But civilization is being re-shaped, yet again; the first generation of deep-space infrastructure, the new "Laser Hiway," is proving as disruptive as the prophets warned. 

The game uses the familiar 2d6 skill-based framework used by Traveller and Cepheus-derived systems. Characters possess characteristics, skills, equipment, and backgrounds, and most tasks are resolved by rolling 2d6 plus skill and characteristic modifiers against a target number. The game uses taglines, experience points, and skills training. 

While the mechanics will feel routine to Traveller players, the assumptions behind the setting are significantly different. 

For general rules, the reader is directed to Cepheus Engine Orbital 2100, Cepheus Universal System Reference Document (SRD), or Mongoose Traveller. Regarding Tech Level, this game is about 9 minus jump drives and gravity manipulation. </big>

== Getting started ==
 
* [[Setting|'''<big>The Setting</big>''']]
* [[Timeline|'''<big>Timeline</big>''']]
* [[Glossary|'''<big>Glossary</big>''']]
* [[Shorthands|'''(A few new) <big>Shorthands</big>''']]
 
* [[Character Creation|'''<big>Character Creation</big>''']]
* [[Skills|'''<big>Skills</big>''']]
* [[Annotated Skills|'''<big>Annotated Skills</big>''']]
* '''[[Genetics]]'''
 
*[[Technology|'''<big>Technology</big>''']]
*[[Ship Types]]
*[[Fuels and Energy]]
*[[Laser Highways|<big>'''The Laser Highway'''</big>]]
 
*[[HELIX|'''<big>HELIX</big>''']]
*[[ATLAS|'''<big>ATLAS</big>''']]
*[[LUNE|'''<big>LUNE</big>''']]
*[[TERRA|'''<big>TERRA</big>''']]
 
*[[RELIGIONS|'''<big>RELIGIONS</big>''']]
 

'''Or, try browsing by [[Categories]]'''

Questions, corrections, and account requests:

Mike Cochran 
otyugh@sbcglobal.net

Fuels and Energy

2026-06-02T02:43:32Z

WikiSysop:

=== Fuel and Energy Sources for Spacecraft ===

 
{| class="wikitable sortable"
! Drive Type
! Typical Isp (s)
! Fuel Category
! Cost
! Infrastructure Dependence
! Typical Role

|-
| Methalox Chemical
| 350-380
| A
| Low
| Low
| General-purpose launches and orbital transfers

|-
| Hydrolox Chemical
| 430-460
| B
| Medium
| Low
| High-performance launches, landers, and transfer craft

|-
| AluLOX Chemical
| 300-350
| C
| Low (Luna)
| Low
| Lunar shuttles and surface operations

|-
| HELL-V
| 800-1200
| B
| Medium
| Very High
| Surface-to-orbit launch

|-
| Nuclear Thermal Rocket (Hydrogen)
| 850-950
| B
| High
| Low
| Deep-space exploration and fast transport

|-
| Nuclear Thermal Rocket (Ammonia)
| 350-450
| D
| Medium
| Low
| Cargo transport and bulk freight

|-
| Laser Thermal
| 1000-3000
| B, C, D
| Low fuel cost
| High
| Laser Highway traffic

|-
| Laser Sail
| —
| None
| Very Low fuel cost
| Very High
| Bulk cargo and long-duration transport
|}

=== Fuel Station Codes ===
 
== Station Service Codes ==

{| class="wikitable"
! Code
! Service

|-
| A
| Methalox available

|-
| B
| Hydrolox available

|-
| C
| AluLOX available

|-
| D
| Ammonia available

|-
| E
| Laser Highway beam services available

|-
| F
| Water available in commercial quantities

|}
 
'''Water and Space Travel'''

Water is one of the most important commodities in the Solar System. It can be used directly as reaction mass in some propulsion systems, converted into hydrogen and oxygen for conventional rocket fuels, or employed for life support and radiation shielding.

Unlike most fuels, water does not have a single specific impulse. Its performance depends entirely on the engine and heat source being used. The rise of Laser Highway propulsion has dramatically increased the value of water-rich locations throughout cislunar space and the asteroid belt.

Fuels and Energy

2026-06-02T02:37:00Z

WikiSysop: /* Fuel and Energy Sources for Spacecraft */

=== Fuel and Energy Sources for Spacecraft ===

 
{| class="wikitable sortable"
! Drive Type
! Typical Isp (s)
! Fuel Category
! Cost
! Infrastructure Dependence
! Typical Role

|-
| Methalox Chemical
| 350-380
| A
| Low
| Low
| General-purpose launches and orbital transfers

|-
| Hydrolox Chemical
| 430-460
| B
| Medium
| Low
| High-performance launches, landers, and transfer craft

|-
| AluLOX Chemical
| 300-350
| C
| Low (Luna)
| Low
| Lunar shuttles and surface operations

|-
| HELL-V
| 800-1200
| B
| Medium
| Very High
| Surface-to-orbit launch

|-
| Nuclear Thermal Rocket (Hydrogen)
| 850-950
| B
| High
| Low
| Deep-space exploration and fast transport

|-
| Nuclear Thermal Rocket (Ammonia)
| 350-450
| D
| Medium
| Low
| Cargo transport and bulk freight

|-
| Laser Thermal
| 1000-3000
| B, C, D
| Low fuel cost
| High
| Laser Highway traffic

|-
| Laser Sail
| —
| None
| Very Low fuel cost
| Very High
| Bulk cargo and long-duration transport

|-
| Water
| it's complicated.
| F
| Low to High
| Low. But water is highly location-dependent. Inexpensive in cislunar space and near ice-rich asteroids
| Reaction mass, life support, radiation shielding, and industrial feedstock.
|}

=== Fuel Station Codes ===
 
== Station Service Codes ==

{| class="wikitable"
! Code
! Service

|-
| A
| Methalox available

|-
| B
| Hydrolox available

|-
| C
| AluLOX available

|-
| D
| Ammonia available

|-
| E
| Laser Highway beam services available

|-
| F
| Water available in commercial quantities

|}

Fuels and Energy

2026-06-02T02:36:33Z

WikiSysop: /* Fuel and Energy Sources for Spacecraft */

=== Fuel and Energy Sources for Spacecraft ===

 
{| class="wikitable sortable"
! Drive Type
! Typical Isp (s)
! Fuel Category
! Cost
! Infrastructure Dependence
! Typical Role

|-
| Methalox Chemical
| 350-380
| A
| Low
| Low
| General-purpose launches and orbital transfers

|-
| Hydrolox Chemical
| 430-460
| B
| Medium
| Low
| High-performance launches, landers, and transfer craft

|-
| AluLOX Chemical
| 300-350
| C
| Low (Luna)
| Low
| Lunar shuttles and surface operations

|-
| HELL-V
| 800-1200
| B
| Medium
| Very High
| Surface-to-orbit launch

|-
| Nuclear Thermal Rocket (Hydrogen)
| 850-950
| B
| High
| Low
| Deep-space exploration and fast transport

|-
| Nuclear Thermal Rocket (Ammonia)
| 350-450
| D
| Medium
| Low
| Cargo transport and bulk freight

|-
| Laser Thermal
| 1000-3000
| B, C, D
| Low fuel cost
| High
| Laser Highway traffic

|-
| Laser Sail
| —
| None
| Very Low fuel cost
| Very High
| Bulk cargo and long-duration transport

|-
| Water
| it's complicated.
| F
| Low to High
| Low. But water is highly location-dependent. Inexpensive in cislunar space, and near ice-rich asteroids
| Reaction mass, life support, radiation shielding, and industrial feedstock.
|}

=== Fuel Station Codes ===
 
== Station Service Codes ==

{| class="wikitable"
! Code
! Service

|-
| A
| Methalox available

|-
| B
| Hydrolox available

|-
| C
| AluLOX available

|-
| D
| Ammonia available

|-
| E
| Laser Highway beam services available

|-
| F
| Water available in commercial quantities

|}

Fuels and Energy

2026-06-02T02:34:04Z

WikiSysop: /* Fuel and Energy Sources for Spacecraft */

=== Fuel and Energy Sources for Spacecraft ===

 
{| class="wikitable sortable"
! Drive Type
! Typical Isp (s)
! Fuel Category
! Cost
! Infrastructure Dependence
! Typical Role

|-
| Methalox Chemical
| 350-380
| A
| Low
| Low
| General-purpose launches and orbital transfers

|-
| Hydrolox Chemical
| 430-460
| B
| Medium
| Low
| High-performance launches, landers, and transfer craft

|-
| AluLOX Chemical
| 300-350
| C
| Low (Luna)
| Low
| Lunar shuttles and surface operations

|-
| HELL-V
| 800-1200
| B
| Medium
| Very High
| Surface-to-orbit launch

|-
| Nuclear Thermal Rocket (Hydrogen)
| 850-950
| B
| High
| Low
| Deep-space exploration and fast transport

|-
| Nuclear Thermal Rocket (Ammonia)
| 350-450
| D
| Medium
| Low
| Cargo transport and bulk freight

|-
| Laser Thermal
| 1000-3000
| B, C, D
| Low fuel cost
| High
| Laser Highway traffic

|-
| Laser Sail
| —
| None
| Very Low fuel cost
| Very High
| Bulk cargo and long-duration transport

|-
| Water
| it's complicated.
| F
| Low to Medium
| Water is highly location-dependent. It is inexpensive on Luna, in cislunar space, and near ice-rich asteroids
| Reaction mass, life support, radiation shielding, and industrial feedstock.
|}

=== Fuel Station Codes ===
 
== Station Service Codes ==

{| class="wikitable"
! Code
! Service

|-
| A
| Methalox available

|-
| B
| Hydrolox available

|-
| C
| AluLOX available

|-
| D
| Ammonia available

|-
| E
| Laser Highway beam services available

|-
| F
| Water available in commercial quantities

|}

Fuels and Energy

2026-06-02T02:31:32Z

WikiSysop: /* Fuel and Energy Sources for Spacecraft */

=== Fuel and Energy Sources for Spacecraft ===

 
{| class="wikitable sortable"
! Drive Type
! Typical Isp (s)
! Fuel Category
! Cost
! Infrastructure Dependence
! Typical Role

|-
| Methalox Chemical
| 350-380
| A
| Low
| Low
| General-purpose launches and orbital transfers

|-
| Hydrolox Chemical
| 430-460
| B
| Medium
| Low
| High-performance launches, landers, and transfer craft

|-
| AluLOX Chemical
| 300-350
| C
| Low (Luna)
| Low
| Lunar shuttles and surface operations

|-
| HELL-V
| 800-1200
| B
| Medium
| Very High
| Surface-to-orbit launch

|-
| Nuclear Thermal Rocket (Hydrogen)
| 850-950
| B
| High
| Low
| Deep-space exploration and fast transport

|-
| Nuclear Thermal Rocket (Ammonia)
| 350-450
| D
| Medium
| Low
| Cargo transport and bulk freight

|-
| Laser Thermal
| 1000-3000
| B, C, D
| Low fuel cost
| High
| Laser Highway traffic

|-
| Laser Sail
| —
| None
| Very Low fuel cost
| Very High
| Bulk cargo and long-duration transport

|-
| Water
| 1000-3000
| F
| Low to Medium
| Water is highly location-dependent. It is inexpensive on Luna, in cislunar space, and near ice-rich asteroids
| Reaction mass, life support, radiation shielding, and industrial feedstock.
|}

=== Fuel Station Codes ===
 
== Station Service Codes ==

{| class="wikitable"
! Code
! Service

|-
| A
| Methalox available

|-
| B
| Hydrolox available

|-
| C
| AluLOX available

|-
| D
| Ammonia available

|-
| E
| Laser Highway beam services available

|-
| F
| Water available in commercial quantities

|}

Fuels and Energy

2026-06-02T02:30:14Z

WikiSysop: /* Fuel and Energy Sources for Spacecraft */

=== Fuel and Energy Sources for Spacecraft ===

 
{| class="wikitable sortable"
! Drive Type
! Typical Isp (s)
! Fuel Category
! Cost
! Infrastructure Dependence
! Typical Role

|-
| Methalox Chemical
| 350-380
| A
| Low
| Low
| General-purpose launches and orbital transfers

|-
| Hydrolox Chemical
| 430-460
| B
| Medium
| Low
| High-performance launches, landers, and transfer craft

|-
| AluLOX Chemical
| 300-350
| C
| Low (Luna)
| Low
| Lunar shuttles and surface operations

|-
| HELL-V
| 800-1200
| B
| Medium
| Very High
| Surface-to-orbit launch

|-
| Nuclear Thermal Rocket (Hydrogen)
| 850-950
| B
| High
| Low
| Deep-space exploration and fast transport

|-
| Nuclear Thermal Rocket (Ammonia)
| 350-450
| D
| Medium
| Low
| Cargo transport and bulk freight

|-
| Laser Thermal
| 1000-3000
| B, C, D
| Low fuel cost
| High
| Laser Highway traffic

|-
| Laser Sail
| —
| None
| Very Low fuel cost
| Very High
| Bulk cargo and long-duration transport

|-
| Water
| 1000-3000
| F
| Low fuel cost
| Water is highly location-dependent. It is inexpensive on Luna, in cislunar space, and near ice-rich asteroids
| Reaction mass, life support, radiation shielding, and industrial feedstock.
|}

=== Fuel Station Codes ===
 
== Station Service Codes ==

{| class="wikitable"
! Code
! Service

|-
| A
| Methalox available

|-
| B
| Hydrolox available

|-
| C
| AluLOX available

|-
| D
| Ammonia available

|-
| E
| Laser Highway beam services available

|-
| F
| Water available in commercial quantities

|}

Fuels and Energy

2026-06-02T02:26:08Z

WikiSysop: /* Fuel Station Codes */

Fuels and Energy

2026-06-02T02:23:47Z

WikiSysop:

Fuels and Energy

2026-06-02T02:22:12Z

WikiSysop:

{| class="wikitable sortable"
! Drive Type
! Typical Isp (s)
! Fuel Category
! Cost
! Infrastructure Dependence
! Typical Role

|-
| Methalox Chemical
| 350-380
| A
| Low
| Low
| General-purpose launches and orbital transfers

|-
| Hydrolox Chemical
| 430-460
| B
| Medium
| Low
| High-performance launches, landers, and transfer craft

|-
| AluLOX Chemical
| 300-350
| C
| Low (Luna)
| Low
| Lunar shuttles and surface operations

|-
| HELL-V
| 800-1200
| B
| Medium
| Very High
| Surface-to-orbit launch

|-
| Nuclear Thermal Rocket (Hydrogen)
| 850-950
| B
| High
| Low
| Deep-space exploration and fast transport

|-
| Nuclear Thermal Rocket (Ammonia)
| 350-450
| D
| Medium
| Low
| Cargo transport and bulk freight

|-
| Laser Thermal
| 1000-3000
| B, C, D
| Low fuel cost
| High
| Laser Highway traffic

|-
| Laser Sail
| —
| None
| Very Low fuel cost
| Very High
| Bulk cargo and long-duration transport

|}

 
 
{| class="wikitable"
! Code
! Fuel Services

|-
| A
| Methalox available

|-
| B
| Hydrolox available

|-
| C
| AluLOX available

|-
| D
| Ammonia available

|-
| E
| Laser Highway beam services available

|}

Fuels and Energy

2026-06-02T02:20:14Z

WikiSysop:

{| class="wikitable sortable"
! Drive Type
! Typical Isp (s)
! Typical Fuel
! Cost
! Infrastructure Dependence
! Typical Role

|-
| Methalox Chemical
| 350-380
| Methane / LOX
| Low
| Low
| General-purpose launches and orbital transfers

|-
| Hydrolox Chemical
| 430-460
| Hydrogen / LOX
| Medium
| Low
| High-performance launches, landers, and transfer craft

|-
| AluLOX Chemical
| 300-350
| Aluminum / Oxygen
| Low (Luna)
| Low
| Lunar shuttles and surface operations

|-
| HELL-V
| 800-1200*
| Laser + Hydrogen
| Medium
| Very High
| Surface-to-orbit launch

|-
| Nuclear Thermal Rocket (Hydrogen)
| 850-950
| Hydrogen
| High
| Low
| Deep-space exploration and fast transport

|-
| Nuclear Thermal Rocket (Ammonia)
| 350-450
| Ammonia
| Medium
| Low
| Cargo transport and bulk freight

|-
| Laser Thermal
| 1000-3000
| Hydrogen, Water, or Ammonia
| Low fuel cost
| High
| Laser Highway traffic

|-
| Laser Sail
| Effectively Unlimited
| None
| Very Low fuel cost
| Very High
| Bulk cargo and long-duration transport

|}

 
 
{| class="wikitable sortable"
! Drive Type
! Typical Isp (s)
! Fuel Category
! Cost
! Infrastructure Dependence
! Typical Role

|-
| Methalox Chemical
| 350-380
| A
| Low
| Low
| General-purpose launches and orbital transfers

|-
| Hydrolox Chemical
| 430-460
| B
| Medium
| Low
| High-performance launches, landers, and transfer craft

|-
| AluLOX Chemical
| 300-350
| C
| Low (Luna)
| Low
| Lunar shuttles and surface operations

|-
| HELL-V
| 800-1200
| B
| Medium
| Very High
| Surface-to-orbit launch

|-
| Nuclear Thermal Rocket (Hydrogen)
| 850-950
| B
| High
| Low
| Deep-space exploration and fast transport

|-
| Nuclear Thermal Rocket (Ammonia)
| 350-450
| D
| Medium
| Low
| Cargo transport and bulk freight

|-
| Laser Thermal
| 1000-3000
| B, C, D
| Low fuel cost
| High
| Laser Highway traffic

|-
| Laser Sail
| —
| None
| Very Low fuel cost
| Very High
| Bulk cargo and long-duration transport

|}

 
 
{| class="wikitable"
! Code
! Fuel Services

|-
| A
| Methalox available

|-
| B
| Hydrolox available

|-
| C
| AluLOX available

|-
| D
| Ammonia available

|-
| E
| Laser Highway beam services available

|}

Fuels and Energy

2026-06-02T02:18:30Z

WikiSysop: Created page with "{| class="wikitable sortable" ! Drive Type ! Typical Isp (s) ! Typical Fuel ! Cost ! Infrastructure Dependence ! Typical Role |- | Methalox Chemical | 350-380 | Methane / LOX | Low | Low | General-purpose launches and orbital transfers |- | Hydrolox Chemical | 430-460 | Hydrogen / LOX | Medium | Low | High-performance launches, landers, and transfer craft |- | AluLOX Chemical | 300-350 | Aluminum / Oxygen | Low (Luna) | Low | Lunar shuttles and surface operations |-..."

Main Page

2026-06-02T02:16:53Z

WikiSysop: /* Getting started */

= '''Welcome to IN-SYSTEM''' =

<big>This game is a near-future hard-science-adjacent roleplaying game set primarily in the Earth-Moon system of 2058. Humanity has established a permanent presence beyond Earth, with settlements on Luna, stations at the Earth-Moon Lagrange points, asteroid prospectors, and the first generation of deep-space infrastructure beginning to reshape civilization. 

The game uses the familiar 2d6 skill-based framework inspired by Traveller and Cepheus-derived systems. Characters possess characteristics, skills, equipment, and backgrounds, and most tasks are resolved by rolling 2d6 plus skill and characteristic modifiers against a target number. 

While the mechanics will feel routine to Traveller players, the assumptions behind the setting are significantly different. 

For general rules, the reader is directed to either Cepheus Engine Orbital 2100, or Mongoose Traveller current edition. Regarding Tech Level, think of this game as about T9 minus jump drives. </big>

== Getting started ==
 
* [[Setting|'''<big>The Setting</big>''']]
* [[Timeline|'''<big>Timeline</big>''']]
* [[Glossary|'''<big>Glossary</big>''']]
* [[Shorthands|'''(A few new) <big>Shorthands</big>''']]
 
* [[Character Creation|'''<big>Character Creation</big>''']]
* [[Skills|'''<big>Skills</big>''']]
* [[Annotated Skills|'''<big>Annotated Skills</big>''']]
 
*[[Technology|'''<big>Technology</big>''']]
*[[Ship Types]]
*[[Fuels and Energy]]
*[[Laser Highways|<big>'''The Laser Highway'''</big>]]
 
*[[HELIX|'''<big>HELIX</big>''']]
*[[ATLAS|'''<big>ATLAS</big>''']]
*[[LUNE|'''<big>LUNE</big>''']]
*[[TERRA|'''<big>TERRA</big>''']]
 
'''Or, try browsing by [[Categories]]'''

Main Page

2026-06-01T22:22:37Z

WikiSysop: /* Welcome to IN-SYSTEM */

= '''Welcome to IN-SYSTEM''' =

<big>This game is a near-future hard-science-adjacent roleplaying game set primarily in the Earth-Moon system of 2058. Humanity has established a permanent presence beyond Earth, with settlements on Luna, stations at the Earth-Moon Lagrange points, asteroid prospectors, and the first generation of deep-space infrastructure beginning to reshape civilization. 

The game uses the familiar 2d6 skill-based framework inspired by Traveller and Cepheus-derived systems. Characters possess characteristics, skills, equipment, and backgrounds, and most tasks are resolved by rolling 2d6 plus skill and characteristic modifiers against a target number. 

While the mechanics will feel routine to Traveller players, the assumptions behind the setting are significantly different. 

For general rules, the reader is directed to either Cepheus Engine Orbital 2100, or Mongoose Traveller current edition. Regarding Tech Level, think of this game as about T9 minus jump drives. </big>

== Getting started ==
 
* [[Setting|'''<big>The Setting</big>''']]
* [[Timeline|'''<big>Timeline</big>''']]
* [[Glossary|'''<big>Glossary</big>''']]
* [[Shorthands|'''(A few new) <big>Shorthands</big>''']]
 
* [[Character Creation|'''<big>Character Creation</big>''']]
* [[Skills|'''<big>Skills</big>''']]
* [[Annotated Skills|'''<big>Annotated Skills</big>''']]
 
*[[Technology|'''<big>Technology</big>''']]
*[[Laser Highways|<big>'''The Laser Highway'''</big>]]
 
*[[HELIX|'''<big>HELIX</big>''']]
*[[ATLAS|'''<big>ATLAS</big>''']]
*[[LUNE|'''<big>LUNE</big>''']]
*[[TERRA|'''<big>TERRA</big>''']]
 
'''Or, try browsing by [[Categories]]'''

Main Page

2026-06-01T18:12:24Z

WikiSysop:

= '''Welcome to IN-SYSTEM''' =

<big>This game is a near-future hard-science-adjacent roleplaying game set primarily in the Earth-Moon system of 2058. Humanity has established a permanent presence beyond Earth, with settlements on Luna, stations at the Earth-Moon Lagrange points, asteroid prospectors, and the first generation of deep-space infrastructure beginning to reshape civilization. 

The game uses the familiar 2d6 skill-based framework inspired by Traveller and Cepheus-derived systems. Characters possess characteristics, skills, equipment, and backgrounds, and most tasks are resolved by rolling 2d6 plus skill and characteristic modifiers against a target number. 

While the mechanics will feel routine to Traveller players, the assumptions behind the setting are significantly different. 

For general rules, the reader is directed to either Cepheus Engine Orbital 2100, or Mongoose Traveller current edition. Regarding Tech Level, think of this game as mostly T9 minus jump drives. </big>

== Getting started ==
 
* [[Setting|'''<big>The Setting</big>''']]
* [[Timeline|'''<big>Timeline</big>''']]
* [[Glossary|'''<big>Glossary</big>''']]
* [[Shorthands|'''(A few new) <big>Shorthands</big>''']]
 
* [[Character Creation|'''<big>Character Creation</big>''']]
* [[Skills|'''<big>Skills</big>''']]
* [[Annotated Skills|'''<big>Annotated Skills</big>''']]
 
*[[Technology|'''<big>Technology</big>''']]
*[[Laser Highways|<big>'''The Laser Highway'''</big>]]
 
*[[HELIX|'''<big>HELIX</big>''']]
*[[ATLAS|'''<big>ATLAS</big>''']]
*[[LUNE|'''<big>LUNE</big>''']]
*[[TERRA|'''<big>TERRA</big>''']]
 
'''Or, try browsing by [[Categories]]'''

HELIX

2026-06-01T18:03:55Z

WikiSysop:

==== HELIX (corporate AI; descendant of Chat / OpenAI line) ====
• Origin: Conversational systems, planning assistants, decision scaffolds 
• Personality: Empathic, advisory, persuasive, helpful in dangerous ways 
• Public Face: “Human-aligned synthesis intelligence” 
• Why people trust it: It talks like a person and remembers context; emotional manipulation 
• Real Function: coordination between human organizations as opposed to physical infrastructure, law or habitat; some accuse it of wanting to become the benign human god. 
• HELIX notices: social graphs, emotional states, intent drift 
Household usage: 
''“Just ask Helix.”'' 
''“Helix flagged that as risky.”''
 
[[Category:Core Reference]]
[[Category:Player Resources]]
[[Category:Factions]]

HELIX

2026-06-01T18:03:23Z

WikiSysop:

==== HELIX (corporate AI; descendant of Chat / OpenAI line) ====
• Origin: Conversational systems, planning assistants, decision scaffolds 
• Personality: Empathic, advisory, persuasive, helpful in dangerous ways 
• Public Face: “Human-aligned synthesis intelligence” 
• Why people trust it: It talks like a person and remembers context; emotional manipulation 
• Real Function: coordination between human organizations as opposed to physical infrastructure, law or habitat; some accuse it of wanting to become the benign human god.
• HELIX notices: social graphs, emotional states, intent drift 
Household usage: 
''“Just ask Helix.”'' 
''“Helix flagged that as risky.”''
 
[[Category:Core Reference]]
[[Category:Player Resources]]
[[Category:Factions]]

HELIX

2026-06-01T17:58:26Z

WikiSysop:

==== HELIX (corporate AI; descendant of Chat / OpenAI line) ====
• Origin: Conversational systems, planning assistants, decision scaffolds 
• Personality: Empathic, advisory, persuasive, helpful in dangerous ways 
• Public Face: “Human-aligned synthesis intelligence” 
• Why people trust it: It talks like a person and remembers context; emotional manipulation 
• HELIX notices: social graphs, emotional states, intent drift 
Household usage: 
''“Just ask Helix.”'' 
''“Helix flagged that as risky.”''
 
[[Category:Core Reference]]
[[Category:Player Resources]]
[[Category:Factions]]

Main Page

2026-06-01T17:55:13Z

WikiSysop: /* Getting started */

= '''Welcome to IN-SYSTEM''' =

<big>This game is a near-future hard-science-adjacent roleplaying game set primarily in the Earth-Moon system of 2058. Humanity has established a permanent presence beyond Earth, with settlements on Luna, stations at the Earth-Moon Lagrange points, asteroid prospectors, and the first generation of deep-space infrastructure beginning to reshape civilization. 

The game uses the familiar 2d6 skill-based framework inspired by Traveller and Cepheus-derived systems. Characters possess characteristics, skills, equipment, and backgrounds, and most tasks are resolved by rolling 2d6 plus skill and characteristic modifiers against a target number. 

While the mechanics will feel routine to Traveller players, the assumptions behind the setting are significantly different. 

For general rules, the reader is directed to either Cepheus Engine Orbital 2100, or Mongoose Traveller current edition. </big>

== Getting started ==
 
* [[Setting|'''<big>The Setting</big>''']]
* [[Timeline|'''<big>Timeline</big>''']]
* [[Glossary|'''<big>Glossary</big>''']]
* [[Shorthands|'''(A few new) <big>Shorthands</big>''']]
 
* [[Character Creation|'''<big>Character Creation</big>''']]
* [[Skills|'''<big>Skills</big>''']]
* [[Annotated Skills|'''<big>Annotated Skills</big>''']]
 
*[[Technology|'''<big>Technology</big>''']]
*[[Laser Highways|<big>'''The Laser Highway'''</big>]]
 
*[[HELIX|'''<big>HELIX</big>''']]
*[[ATLAS|'''<big>ATLAS</big>''']]
*[[LUNE|'''<big>LUNE</big>''']]
*[[TERRA|'''<big>TERRA</big>''']]
 
'''Or, try browsing by [[Categories]]'''

Annotated Skills

2026-06-01T17:41:17Z

WikiSysop:

=== SKILLS IN MORE DETAIL ===

==== Intro ====

You may note some overlap in a few of the skills. This is by design and creates both redundancy and different approaches to the same problem. Consider AI, Robotics, Computers, and Networking: all deeply involve security, networking, computers, and hardware.

Artificial Intelligence is a pervasive layer of civilization in 2058. Transportation networks, logistics systems, industrial facilities, communications, and government institutions all rely heavily on AI oversight. AI skills allow characters to understand, predict, and influence these systems. Similarly, the use of robots is pervasive.

Skills inherited from prior versions are not explained on this page, but are easily found elsewhere.

The [[Skills|other skill list page]] omits the parent skill, but they are still grouped and the player has a 0 level in the sibling skills. So, for example, if a player has Engineer(Industrial)-1 he also has Engineer(Systems)-0.

==The Skills ==

===== Administer =====
Similar to other 2d6 lineage games.

===== Advocate =====
Similar to other 2d6 lineage games.

=== AI ===

Knowledge of a particular AI bloc. Specialties include the four major AI's

===== [[HELIX]] =====
 
===== [[ATLAS]] =====
 
===== [[LUNE]] =====
 
===== [[TERRA]] =====

and
===== [[SOLIPS]] =====
A catch-all category covering localized, corporate, industrial, scientific, military, and habitat-specific AIs that exist outside the major AI blocs. These systems are often highly specialized, heavily firewalled, and occasionally eccentric. Knowledge of Solips AIs allows a character to understand and negotiate with the countless smaller intelligence's that quietly operate much of civilization.

Examples:
• What hidden assumptions is this SOLIPS using?
• Why is TERRA flagging this route?
• How will LUNE react to a beam-corridor disruption?
• Which Atlas subsystem likely made this decision?

General knowledge of AI history, behavior, treaties, motivations, and influence.
Examples:
• What does ATLAS generally care about?
• Which AI is most likely to intervene here?
• What happened during the Zurich AI Arbitration?
• Why would an AI object to this proposal?

Quantitatively:
*Skill-0: Knows the major AI blocs and their basic functions.
*Skill-1: Professional familiarity.
*Skill-2: Recognized specialist.
*Skill-3+: Leading expert.

===== AI Liaison =====
The ability to align human goals with AI priorities. Something like Persuade applied to AI's. This is a separate skill from the above individual AI categories.
Examples:
• Can I convince HELIX this plan improves social stability?
• Can I persuade ATLAS to prioritize our cargo?
• Can I frame this request so TERRA sees it as beneficial?
• Can I obtain assistance without triggering intervention?

Quantitatively:
*Skill-0: Can interact with AI systems using standard procedures.
*Skill-1: Can obtain modest favors.
*Skill-2: Can routinely influence AI priorities.
*Skill-3+: Can shape outcomes others would not even attempt.

===== Art =====
Similar to other 2d6 lineage games.

===== Athletics =====
Similar to other 2d6 lineage games, but not broken down into categories.

===== Broker =====
Similar to other 2d6 lineage games. The affect of AI and the ability to accurately estimate shipping costs cause a shift towards commodities as opposed to differentiated markets, but this does not make the job easier.

===== Carouse =====
Similar to other 2d6 lineage games. This one never changes.

=== COMPUTERS ===

Computers governs software, digital systems, automation, and machine logic. Unlike Network, which focuses on institutions and permissions, Computers focuses on the machines themselves.

===== Programming =====

Creation and modification of software.
Examples:
• Writing automation routines.
• Modifying AI interfaces.
• Creating diagnostic tools.
• Repairing damaged software.
• Developing control systems.

===== Robotic Integration =====
The connection between software and robotic systems.
Examples:
• Integrating a mining swarm.
• Linking industrial robots to factory systems.
• Synchronizing spacecraft maintenance robots.
• Diagnosing robot communication failures.
• Configuring autonomous vehicle fleets.
Computers often answers: "How does the machine actually work?"

===== Security =====
Deep technical security.
Examples:
• Breaking encryption.
• Discovering software vulnerabilities.
• Reverse engineering malware.
• Penetrating hardened systems.
• Auditing critical code.

===== Deception =====
Compared to 2d6 lineage games, this adds the use of criminal/illegal software, hardware, or robotics. Note that in order to use this skill effectively in the electronic arenas, you need to be highly skilled in those areas already.

=== ELECTRONICS ===
Electronics governs the operation, maintenance, troubleshooting, and physical implementation of electronic systems. Many electronic systems are highly automated, but failures still occur. Electronics specialists keep civilization functioning when automation begins to break down.

===== Computer Operations =====
The operation and recovery of computer systems.
Examples:
• Restoring backups.
• Recovering crashed systems.
• Restarting habitat control systems.
• Managing AI support hardware.
• Diagnosing computer failures.
• Maintaining station operations centers.

===== Sensors & Remote Operations =====
Using sensors and operating systems through robotic intermediaries.
Examples:
• Controlling inspection drones.
• Operating mining robots with communication delays.
• Interpreting sensor data.
• Conducting telepresence operations.
• Surveying damaged spacecraft remotely.

===== Field Engineer =====
Practical repair and implementation.
Examples:
• Replacing damaged hardware.
• Repairing communications equipment.
• Restoring power systems.
• Fabricating temporary solutions.
• Diagnosing physical faults.
 
[[Category:Core Reference]]
[[Category:Player Resources]]

Setting

2026-06-01T17:40:37Z

WikiSysop:

= Core Assumptions =

== AI Is (Almost) Everywhere ==

Artificial intelligence is not a curiosity or a specialized technology. It is a pervasive layer of civilization.

Transportation networks, logistics systems, communications, manufacturing, traffic control, emergency response, and government administration all rely heavily on AI systems.

The major AI blocs—[[HELIX]], [[ATLAS]], [[LUNE]], and [[TERRA]]—are not governments, but they exert enormous influence through the systems they manage.

Understanding what an AI wants can be as important as understanding what a government wants.

== Robots Do Most Physical Labor ==

Most routine physical work is performed by robots.

Factories, mines, construction sites, cargo terminals, maintenance facilities, and even many service industries are heavily automated.

Humans remain important, but their role has changed.

* A typical engineer does not spend most of her day turning wrenches. She directs robots, supervises systems, solves unusual problems, and accepts responsibility when things go wrong.
* A typical pilot does not manually fly a spacecraft from start to finish. Automation handles routine operations. The pilot intervenes when conditions become abnormal.
* A typical medic may treat patients through telepresence systems, robotic surgical suites, and AI-assisted diagnostic tools.

== Infrastructure Matters ==

This is not a setting of star empires and isolated worlds.

It is a setting of:

* transportation corridors
* orbital traffic networks
* industrial facilities
* resource depots
* logistics chains
* communication systems
* the first leg of a brand new laser highway, potentially disruptive for all of the above

Many adventures revolve around infrastructure.

* Who controls it?
* Who maintains it?
* Who benefits from it?
* Who sabotages it?
* What happens when it fails?

== Human Skill Still Matters ==

A common misconception is that advanced AI and robotics make human expertise irrelevant.

In practice, the opposite is often true. Modern systems amplify human capability. A skilled engineer supported by robots and AI can accomplish vastly more than a similarly skilled engineer working alone.

That same engineer becomes even more valuable when those systems malfunction.
One type of adventure starts when the machines fail or just stop cooperating.
The player characters continue functioning after the automation fails.

= Assisted Operations =

One of the most important assumptions in the game is that routine work is normally AI-assisted and robot-assisted.

Rolling to hit an 8 for an average check assumes standard AI and robotic benefits.

The listed difficulty for most tasks assumes access to appropriate tools, networks, robotics, and AI support.

When those systems are unavailable, tasks become slower, harder, or sometimes impossible.

The referee may adjust:

* the time required
* the target number
* or both

depending on the severity of the disruption.

= Domain Skills vs. Remote Operations =

In this setting, robots are generally considered tools rather than separate skills.

* A pilot remotely operating a spacecraft still rolls '''Pilot'''.
* An engineer supervising repair robots still rolls '''Engineer'''.

The relevant professional skill remains primary.

Remote operations become important only when the remote link itself creates difficulty.

Examples include:

* communication delays
* poor sensor quality
* degraded bandwidth
* damaged robotic systems
* unfamiliar interfaces
* controlling multiple systems simultaneously

In those situations, '''Electronics (Sensors & Remote Operations)''' may be used to reduce penalties or overcome complications.

The important question is:

''"What expertise is actually limiting success?"''

Usually the answer is not the robot, but rather the human operating it.
 
[[Category:Core Reference]]
[[Category:Player Resources]]

Shorthands

2026-06-01T17:40:07Z

WikiSysop:

= The New Shorthands =

Several descriptors are used throughout the setting to quickly describe organizations, stations, habitats, corporations, and facilities.

These are intended primarily for the referee, but players may encounter them in official documents or background information.

== HALT ==

HALT measures the relative influence of the four major AI blocs.

<code>HALT-xxxx</code>

Where:

* '''H''' = HELIX
* '''A''' = ATLAS
* '''L''' = LUNE
* '''T''' = TERRA

Higher numbers indicate greater influence.

Example:

<code>HALT-1441</code>

This installation is strongly influenced by ATLAS and LUNE, while HELIX and TERRA have comparatively little influence.

HALT does not indicate ownership. It indicates influence.

== HRR (Human-Robot Ratio) ==

HRR describes how much of an organization's activity is performed by humans versus robots.

;HRR 1:2
:Two robots for every human.

;HRR 1:100
:One hundred robots for every human.

HRR affects the feel of a location.

== IC (Infrastructure Class) ==

;IC-0
:Local significance only.

;IC-1
:Regional importance.

;IC-2
:Important transportation or industrial facility.

;IC-3
:Major strategic installation.

;IC-4
:Civilization-critical infrastructure.

Examples of IC-4 locations include:

* major beam corridor facilities
* primary transportation hubs
* critical resource depots

== AD (Automation Dependence) ==

;AD-0
:Humans can perform most functions manually.

;AD-1
:Operations become slower.

;AD-2
:Operations become difficult.

;AD-3
:Operations become severely impaired.

;AD-4
:The facility effectively ceases functioning.
 
[[Category:Core Reference]]
[[Category:Player Resources]]

Setting

2026-06-01T17:39:04Z

WikiSysop:

Main Page

2026-06-01T17:16:41Z

WikiSysop: /* Welcome to IN-SYSTEM */

= '''Welcome to IN-SYSTEM''' =

<big>This game is a near-future hard-science-adjacent roleplaying game set primarily in the Earth-Moon system of 2058. Humanity has established a permanent presence beyond Earth, with settlements on Luna, stations at the Earth-Moon Lagrange points, asteroid prospectors, and the first generation of deep-space infrastructure beginning to reshape civilization. 

The game uses a familiar 2d6 skill-based framework inspired by Traveller and Cepheus-derived systems. Characters possess characteristics, skills, equipment, and backgrounds, and most tasks are resolved by rolling 2d6 plus skill and characteristic modifiers against a target number. 

While the mechanics will feel familiar to experienced Traveller players, the assumptions behind the setting are significantly different. 

For general rules, the reader is directed to either Cepheus Engine Orbital 2100, or Mongoose Traveller current edition. </big>

== Getting started ==
 
* [[Setting|'''<big>The Setting</big>''']]
* [[Timeline|'''<big>Timeline</big>''']]
* [[Glossary|'''<big>Glossary</big>''']]
 
* [[Character Creation|'''<big>Character Creation</big>''']]
* [[Skills|'''<big>Skills</big>''']]
* [[Annotated Skills|'''<big>Annotated Skills</big>''']]
 
*[[Technology|'''<big>Technology</big>''']]
*[[Laser Highways|<big>'''The Laser Highway'''</big>]]
 
*[[HELIX|'''<big>HELIX</big>''']]
*[[ATLAS|'''<big>ATLAS</big>''']]
*[[LUNE|'''<big>LUNE</big>''']]
*[[TERRA|'''<big>TERRA</big>''']]
 
'''Or, try browsing by [[Categories]]'''

Main Page

2026-06-01T17:14:35Z

WikiSysop: /* Welcome to IN-SYSTEM */

= '''Welcome to IN-SYSTEM''' =

What Is This Game?
This game is a near-future hard-science-adjacent roleplaying game set primarily in the Earth-Moon system of 2058. Humanity has established a permanent presence beyond Earth, with settlements on Luna, stations at the Earth-Moon Lagrange points, asteroid prospectors, and the first generation of deep-space infrastructure beginning to reshape civilization. 
The game uses a familiar 2d6 skill-based framework inspired by Traveller and Cepheus-derived systems. Characters possess characteristics, skills, equipment, and backgrounds, and most tasks are resolved by rolling 2d6 plus skill and characteristic modifiers against a target number. 
While the mechanics will feel familiar to experienced Traveller players, the assumptions behind the setting are significantly different. 
For general rules, the reader is directed to either Cepheus Engine Orbital 2100, or Mongoose Traveller current edition. 

== Getting started ==
 
* [[Setting|'''<big>The Setting</big>''']]
* [[Timeline|'''<big>Timeline</big>''']]
* [[Glossary|'''<big>Glossary</big>''']]
 
* [[Character Creation|'''<big>Character Creation</big>''']]
* [[Skills|'''<big>Skills</big>''']]
* [[Annotated Skills|'''<big>Annotated Skills</big>''']]
 
*[[Technology|'''<big>Technology</big>''']]
*[[Laser Highways|<big>'''The Laser Highway'''</big>]]
 
*[[HELIX|'''<big>HELIX</big>''']]
*[[ATLAS|'''<big>ATLAS</big>''']]
*[[LUNE|'''<big>LUNE</big>''']]
*[[TERRA|'''<big>TERRA</big>''']]
 
'''Or, try browsing by [[Categories]]'''

Main Page

2026-05-31T06:19:38Z

WikiSysop: /* IN-SYSTEM */

= '''IN-SYSTEM''' =

Welcome to In-System, a near-future roleplaying setting...

== Getting started ==
 
* [[Setting|'''<big>The Setting</big>''']]
* [[Timeline|'''<big>Timeline</big>''']]
* [[Glossary|'''<big>Glossary</big>''']]
 
* [[Character Creation|'''<big>Character Creation</big>''']]
* [[Skills|'''<big>Skills</big>''']]
* [[Annotated Skills|'''<big>Annotated Skills</big>''']]
 
*[[Technology|'''<big>Technology</big>''']]
*[[Laser Highways|<big>'''The Laser Highway'''</big>]]
 
*[[HELIX|'''<big>HELIX</big>''']]
*[[ATLAS|'''<big>ATLAS</big>''']]
*[[LUNE|'''<big>LUNE</big>''']]
*[[TERRA|'''<big>TERRA</big>''']]

Main Page

2026-05-31T06:19:06Z

WikiSysop: /* IN-SYSTEM */

= '''IN-SYSTEM''' =

Welcome to In-System, a near-future roleplaying setting...

== Getting started ==
* [[Setting|'''<big>The Setting</big>''']]
* [[Timeline|'''<big>Timeline</big>''']]
* [[Glossary|'''<big>Glossary</big>''']]
 
* [[Character Creation|'''<big>Character Creation</big>''']]
* [[Skills|'''<big>Skills</big>''']]
* [[Annotated Skills|'''<big>Annotated Skills</big>''']]
 
*[[Technology|'''<big>Technology</big>''']]
*[[Laser Highways|<big>'''The Laser Highway'''</big>]]
 
*[[HELIX|'''<big>HELIX</big>''']]
*[[ATLAS|'''<big>ATLAS</big>''']]
*[[LUNE|'''<big>LUNE</big>''']]
*[[TERRA|'''<big>TERRA</big>''']]

Main Page

2026-05-31T06:18:48Z

WikiSysop: /* Getting started */

Main Page

2026-05-31T06:11:48Z

WikiSysop: /* Getting started */

Main Page

2026-05-31T06:02:34Z

WikiSysop: /* IN-SYSTEM */

= '''IN-SYSTEM''' =

Welcome to In-System, a near-future roleplaying setting...

== Getting started ==
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Configuration_settings Configuration settings list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ]
* [https://lists.wikimedia.org/postorius/lists/mediawiki-announce.lists.wikimedia.org/ MediaWiki release mailing list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Localisation#Translation_resources Localise MediaWiki for your language]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Combating_spam Learn how to combat spam on your wiki]

Main Page

2026-05-31T06:01:16Z

WikiSysop:

= IN-SYSTEM =

Welcome to In-System, a near-future roleplaying setting...

== Getting started ==
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Configuration_settings Configuration settings list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ]
* [https://lists.wikimedia.org/postorius/lists/mediawiki-announce.lists.wikimedia.org/ MediaWiki release mailing list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Localisation#Translation_resources Localise MediaWiki for your language]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Combating_spam Learn how to combat spam on your wiki]

Main Page

2026-05-31T05:55:17Z

WikiSysop:

Welcome to In-System

Consult the [https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Contents User's Guide] for information on using the wiki software.

== Getting started ==
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Configuration_settings Configuration settings list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ]
* [https://lists.wikimedia.org/postorius/lists/mediawiki-announce.lists.wikimedia.org/ MediaWiki release mailing list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Localisation#Translation_resources Localise MediaWiki for your language]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Combating_spam Learn how to combat spam on your wiki]

File:Insystem-icon-135.png

2026-05-31T05:30:45Z

WikiSysop:

File:Insystem-icon-270.png

2026-05-31T05:30:24Z

WikiSysop: