Program: Oolite
Application: Games
License: Open Source (not sure of exact license)
Description: A 3D, space trading/combat "simulator" and a re-imagination of the classic Elite. (The original author of Oolite prefers not to consider it a "remake", and there definitely some enhancements over the original). Its open ended game-play makes for variety of play, you can pilot a huge trading vessel, hunt down hardened criminals as a bounty hunter, or be the hunted yourself, as a pirate menacing trade conveys as they slowly make their way through Space. If you ever loved the original then you'll love this, improved graphics, game-play, equipment, ships and just all around a thoroughly engrossing game. Even if you didn't love the original then you still might like this. It's a pity we can't post screenshots. Takes me back to my misspent youth.
Website: http://www.oolite.org/
Other:Looks like it stores the general settings here: ./oolite.app/GNUstep/Defaults and save games are stored here: ./oolite.app/oolite-saves
This game was requested once before, a long time ago but apparently fell on deaf ears. It's not terribly big, about 36mb installed I think and would make an excellent addition to the games section.