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Cataclysm: Dark Days Ahead
RPG / roguelike
Kevin Granade

OpenTTD
simulation / management
OpenTTD Team

0 A.D.
strategy / real-time strategy
Wildfire Games

Angband
RPG / roguelike
Angband Development Team

Unknown Horizons
simulation / city building
The Unknown Horizons Developers

Dungeon Crawl Stone Soup
RPG / roguelike
DCSS Devteam

Battle for Wesnoth
strategy / turn-based tactics
David White

Hurrican
platformer / run and gun
Poke53280

Freeciv
strategy / 4X
The Freeciv project

FreeCol
strategy / 4X
The Freecol Team

TORCS
simulation / racing
TORCS Team

Armoured Commander
strategy / turn-based tactics
Gregory Adam Scott

Dungeon Craft
RPG / old school RPG
Dungeon Craft Team

OpenClonk
platformer
OpenClonk team

Warsow
shooter / first-person shooter
Warsow Team

Widelands
strategy / real-time strategy
Widelands Development Team

Mirror Magic
puzzle
Artsoft Entertainment

OpenRCT2
simulation / management
OpenRCT2 team

Simutrans
simulation / management
Simutrans Development Team

Alien Arena
shooter / first-person shooter
COR Entertainment

Xonotic
shooter / first-person shooter
Team Xonotic