I'm looking for a Sci-Fi Space-faring RPG that meets the following requirements:
The system is free or has enough OGL rules to be played for free.
The rules should be primarily or solely developed for a Sci-Fi, Space-faring RPG. No sci-fi variation on a generic system — no GURPS, Fate, Hero System, d20, etc.
- The game is rules-heavy enough to have detailed rules on space flight and space combat.
- The game has detailed character creation and equipment rules.
- The setting would be at the point at which space travel was very commonplace, possibly far-future or transhumanist.
Hopefully that's enough requirements listed to narrow down to a best answer; I'd really appreciate any help with such a system.