RTS
- Spring RTS-based
- Open-source engine
- Runs on Windows, GNU/Linux, OS X
- Balanced Annihilation
- Free
- Most played Spring-based game
- Not free of TA (Total Annihilation) IP (Intellectual Property), copyright issues
- See here for download: http://springrts.com/phpbb/viewforum.php?f=44
- Units with harder edges
- Complete Annihilation
- Free
- Working towards being free of TA IP
- Flat technology tree
- Rounder units
- Spring: 1944
- Free
- WWII
- Star Wars: Imperial Winter
- Free
- Not yet released
- For others, see:
- 0 AD
- Free, open-source
- Currently in alpha
- Runs on Windows, GNU/Linux, possibly OS X
- Ground Control
- Free
- Downloadable here: http://www.fileplanet.com/217370/210000/fileinfo/Ground-Control-%28Free-Game%29
- Or google for Ground_Control_GSI.exe
- Windows only
- Non-traditional RTS: no base, no resources, just a set amount of units brought in by dropship
- No single-player skirmish mode by default, although you can download maps that have this feature (SK1)
- Warzone 2100
- Free, open-source
- Runs on GNU/Linux, OS X, Windows
Strategy
- Freeciv
- Free, open-source
- Clone of Civilization, closest to Civilization II
- OpenTTD
- Free, open-source
- Clone of Transport Tycoon Deluxe
FPS
- Enemy Territory: Legacy
- Open-source: https://github.com/etlegacy/etlegacy
- Tribes 2
- Free
- Windows version downloadable here: http://www.tribesnext.com/downloads
- Or google for tribes2_gsi.exe or tribes2gsi.exe
- MD5: 93460541ddd3bdff9b30829ba04f2186
- Linux binaries available here: http://web.archive.org/web/20080620003840/http://elven.de/t2lin-25034.tgz
- Or here: https://archive.org/details/t2lin-25034
- Or google for t2lin-25034.tgz
- MD5: 69e52b1e3ff409e2c4f865151bbfe2a7
- Instructions here: http://web.archive.org/web/20080620003840/http://www.elven.de/articles/2007/10/28/the-ultimate-guide-to-tribes-2-on-linux/
Space combat simulation
Misc
- Greedy Car Thieves
- Open-source
- Similar to Grand Theft Auto 2