Quake Engine
GPLThe Quake engine is the game engine that was written to power 1996's Quake, written by id Software. It featured true 3D realtime rendering and is now...
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ZDoom
Public DomainZDoom 2.7.1 (Requires a DOOM, DOOM 2, HERETIC, HEXEN, or STRIFE IWAD) ZDoom is an enhanced port of the official DOOM source code to Win32. As such, it...
Doom Engine
GPLThe Doom engine is the game engine that powers the id Software games Doom and Doom II, as well as Raven Software's titles Heretic and Hexen, then finally...
RenderWare
CommercialRenderWare is a 3D API and graphics rendering engine used in computer games, Active Worlds, and some VRML browsers. RW is developed by Criterion Software...
Unreal Engine 2
CommercialUnreal Engine 2 is a complete game development framework targeted at today's mainstream PC's, Microsoft's Xbox game console, and Sony's PlayStation 2.
LS3D
CommercialThe LS3D game engine was developed by Illusion Softworks and used by the games Mafia: City of Lost Heaven, Hidden & Dangerous 2 and Chameleon. The...
Unreal Engine 3
CommercialUnreal Engine 3 is a complete game development framework for next-generation consoles and DirectX9-equipped PCs, providing the vast array of core technologies...
id Tech 3
GPLPreviously called the "QUAKE 3 Engine" and one of the most successful licensed engines in history, id Tech 3 was the engine used to create games such...
Creation Engine
CommercialThe Creation Engine was created specifically for the new game, The Elder Scrolls V, Skyrim. It allows the game to have farther draw distances than any...
Clausewitz Engine
ProprietaryOriginally developed for Europa Universalis III, it has been used in every game developed by Paradox Development Studio since. The engine provides a 3D...
GoldSrc
CommercialThis QuakeWorld-based engine powered some of the most critically acclaimed engine's of it's day, like Half-Life, Counter-Strike, Day of Defeat, and many...