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Welcome to IN-SYSTEM

This is a near-future hard-science-adjacent roleplaying game set in our solar system in 2158. Humanity has established a permanent presence on Luna, the Earth-Moon Lagrange points, and Mars. Colonies, stations, outposts in The Belt and on distant moons provide harbor for intrepid miners and religious sects. The first generation of deep-space infrastructure begins reshaping civilization, again.

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.

Getting started

• The Setting
• Timeline
• Glossary
• (A few new) Shorthands

• Character Creation
• Skills
• Annotated Skills

• Technology
• Ship Types
• Fuels and Energy
• The Laser Highway

• HELIX
• ATLAS
• LUNE
• TERRA

• RELIGIONS

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