Epiar is a space adventure/combat game written in C with SDL
(Simple DirectMedia Layer). It is absolutely free (released
under the General Public License v2).
In Epiar, you begin as a shuttle pilot in a galaxy generally
ruled by anarchy, with few stable governments and numerous
rebel factions. You start your adventure off doing whatever
you want, but generally trying to save up money for a new
starship, and your adventure takes off from there ...