List of game engines

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Several tools called game engines are available for game designers to easily code a game quickly without building from the ground up. It's important to recognise the difference between a graphics engine, a game engine and game engine support libraries. A game engine is that module of a game which implements the game logic. Few of the engines listed below are game engines. In fact, almost all of them are graphics engines. For example, a Pacman game contains some code which draws a partial filled yellow circle (the graphics engine) and some code that increases the score when the player character eats a ghost (the game engine).

• Agar (engine) - A high-level graphical application framework used by 2D and 3D computer games
• Axiom Engine - A fork containing the core of the OGRE graphics engine
• Boom - A port of the Doom source code by TeamTNT
• Build engine - A First person shooter engine
• CheapHack - Am outdated TomazQuake derived engine
• Crystal Entity Layer - An extension of the Crystal Space 3D Engine
• Crystal Space - A general framework for developing 3D applications
• Cube - Powers the computer game of the same name
• DarkPlaces - One of the most advanced free software Quake engines
• Delta3d - Integrates other well-known free software projects into an easy-to-use API, originally developed by the U.S. Navy
• DGD - An object-oriented programmable MUD engine
• Doom engine - The now free software engine originally used for Doom and Doom II
• Elysium Source - Free software version of Konfuze Engine for RPG games
• Eternity Engine - A source port of the Doom engine
• Exult - A free software reimplementation of the Ultima VII game engine
• FIFE - A free software 2D ISO engine supporting the assets of Fallout 1 & 2
• Game Blender - A sub-application of Blender for creating games
• GQ - A Quake engine that adds features from TomazQuake and DarkPlaces
• GZDoom - A source port of the Doom engine based on ZDoom
• Genesis3D - A real-time 3D engine for Windows
• GemRB - A free software implementation of the Infinity Engine
• Irrlicht Engine - A cross-platform engine known for its speed and 3D engine capabilities
• Jogre - a Java based client/server game engine and API for online real time games such as chess, checkers, etc.
• Nebula Device - A realtime 3D game engine developed by German game studio Radon Labs.
• OctLight - A Java game engine that uses scene-graph and renders on top of Lightweight Java Game Library (LWJGL) using OpenGL
• OGRE Engine - A very popular object-oriented graphics rendering engine
• Pentagram - A project to create a game engine that is capable of running Ultima VIII: Pagan
• ProQuake - A modified Quake engine
• Quake II engine - The original free software Quake II engine from Id Software
• Quake III engine - The original free software Quake III engine from Id Software
• RealmForge - An open-source game engine for the Microsoft .NET Framework, predecessor to Visual3D.NET
• Sauerbraten - A upgraded engine forked from the Cube engine
• Stratagus - A cross-platform real time strategy game engine
• Telejano - a modified Quake engine
• Tenebrae - One of many Quake engine clones
• vbGORE - Open-source online RPG engine in Visual Basic 6 (2d via 3d hybrid engine).
• Yake - a component-based, object-oriented, partially generic engine written in C++
• ZDoom - One of the many Doom source code ports

• Arcane Engine - Designed by Wolfpack Studios for Shadowbane
• Aurora Engine - For Role-playing games
• BRender - A real-time 3D graphics engine for computer games, simulators and graphic tools
• C4 Engine - An emerging next-generation computer game engine created by Eric Lengyel
• Coldstone game engine - an old game creation suite for Macintosh/Windows to create role-playing or adventure-style games
• CryENGINE - The game engine used for the first-person shooter computer game Far Cry
• Dagor Engine 3 - A high-tech cross-platform game engine (3D, physics, game logic) with rich toolset for content development
• Dark engine - An outdated engine used for the Looking Glass Studios games
• Doom 3 engine - Used by the games Doom 3, Quake 4 and Prey
• Earth-4 Engine - The graphics engine used in Earth 2160
• Electron engine - Currently in development by Obsidian Entertainment for their game Neverwinter Nights 2, based on the Aurora engine
• Explorations - 2d MMO creator
• Gamebryo - A cross-platform 3D computer graphics engine coded in C++
• GoldSrc - The heavily modified Quake engine that powers Half-Life
• IMUSE - Specifically designed to synchronize music with visual action
• INSANE - Used in LucasArts games
• Infinity Engine - Allows the creation of isometric computer role-playing games
• Jedi - A game engine developed by LucasArts for Star Wars: Dark Forces and Outlaws
• KjAPI - A C++ technology to create games and 3D applications for PC computers
• Lithtech - A competing alternative to the Quake and Unreal engines
• M.U.G.E.N - A 2D fighting game engine
• Odyssey Engine - Used to create three dimensional computer role-playing games, used Star Wars: Knights of the Old Republic
• ORE - Online RPG Engine
• Power Render - A general purpose software development kit for games and 3D visualization
• RAGE - A game engine created by Rockstar Games use it to power their upcoming video games on the Xbox 360 and PlayStation 3
• Reality Engine - 3D game engine by Artificial Studios
• RenderWare - A very popular 3D API and graphics rendering engine
• Retribution Engine - A game engine to make first person shooter games
• Revolution3D - A 3D graphics engine developed by X-Dream Project
• SAGE engine - Used to create real-time strategy games
• SCUMM engine - Used in LucasArts graphical adventure games
• Shark 3D - A middleware from Spinor for computer, video games and realtime 3D applications
• Silent Storm engine - A turn-based strategy game engine
• Sith - A game engine developed by Lucasarts for Jedi Knight: Dark Forces II
• Source engine - a popular engine used in Half-Life 2 and other games
• Torque Game Engine - A modified version of a 3D computer game engine originally developed by Dynamix for the 2001 FPS Tribes 2
• TOSHI - A fourth generation cross platform game engine designed by Blue Tongue Entertainment
• Truevision3d - A 3D game engine using the DirectX API
• Unigine - Cross-platform middleware with great graphics
• Unity (game engine) - An easy to use 3d game engine
• Unreal engine - One of the most popular game engines for action games
• Vengeance engine - A video game engine based on the Unreal Engine 2/2.5
• Vicious Engine - Available for Microsoft Windows, Sony PlayStation 2, Microsoft Xbox, and Sony
• 3DGame Studio - www.3dgamestudio.com
• Vision Game Engine - www.trinigy.de
• Virtools - www.virtools.com

• Gledplay - A complete SDK to develop games for mobile devices.

• Visual3D.NET - A .Net based engine for Microsoft platforms
• WGAF - The game engine developed by Guild Software which powers their MMORPG Vendetta Online
• White Engine - An exclusive seventh generation game engine built for Square Enix's future video games
• XnGine - One of the first true 3D engines

• Game engine
• First person shooter engine
• Game_Middleware

This list is incomplete; you can help by adding missing items.