idtech3 (Quake 3 Engine) - 1998

idtech3 is a game engine developed by id Software, first used in the 1998 first-person shooter game Quake III Arena.
idtech2
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idtech3 (Quake 3 Engine)
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Quake 3 Arena - 1999
Quake 3 Fortress - 2000
Return to Castle Wolfenstein - 2001
Call of Duty - 2003
Enemy Territory - 2003
Enemy Territory Fortress - 2003
Quake Live - 2010
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idtech4 (Doom 3 Engine) (2004) IW 2.0 (Call of Duty 2 Engine) (2005)