LithTech
CommercialThe LithTech Engine was initially developed by Monolith in collaboration with Microsoft, until LithTeh Inc was formed to continue development on the engine...
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CommercialThe IW Engine is a game engine developed by Infinity Ward, based on id Tech 3, which was first used on the highly successful game Call of Duty 2. Since...
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...
Irrlicht Engine
Public DomainThe Irrlicht Engine is an open source high performance realtime 3D engine written and usable in C++ and also available for .NET languages. It is completely...
Build
ProprietaryBUILD engine is the game engine behind Duke Nukem 3D, Shadow Warrior, Blood, and many other titles of the 90s. It was one of the most popular engines...
X-Ray Engine
CommercialThe X-ray Engine is a DirectX 8.1/9 Shader Model 3.0 graphics engine. Up to a million polygons can be on-screen at any one time. The engine features HDR...
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...
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...
Xash3D FWGS Engine
GPLFork of Xash3D engine that ported to many different platforms, such as Linux, *BSD, OS X, Haiku, Emscripten, Android and iOS. Allows play Half-Life out-of-the-box...
Source²
CommercialThe announced next gen Source engine in the making. A set of Source 2 tools for building new environments will ship with Half-Life: Alyx, enabling any...
Xash3D Engine
GPLXash3D is the powerful independent open-sourced 3D-engine, aimed for high compatibility with GoldSource engine formats (maps, models, textures, sounds...