Godot Engine – Multi-platform 2D and 3D game engine
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Updated
Jul 7, 2024 - C++
Game engines are software frameworks for game development. Game engines do the heavy lifting for developers so they can focus on other aspects of game development.
Godot Engine – Multi-platform 2D and 3D game engine
Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies
Cocos2d-x is a suite of open-source, cross-platform, game-development tools utilized by millions of developers across the globe. Its core has evolved to serve as the foundation for Cocos Creator 1.x & 2.x.
Minetest is an open source voxel game-creation platform with easy modding and game creation
Gaming meets modern C++ - a fast and reliable entity component system (ECS) and much more
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D engine that enables developers and content creators to build AAA games, cinema-quality 3D worlds, and high-fidelity simulations without any fees or commercial obligations.
A multi core friendly rigid body physics and collision detection library. Written in C++. Suitable for games and VR applications. Used by Horizon Forbidden West.
Piccolo (formerly Pilot) – mini game engine for games104
Cocos simplifies game creation and distribution with Cocos Creator, a free, open-source, cross-platform game engine. Empowering millions of developers to create high-performance, engaging 2D/3D games and instant web entertainment.
Lightweight and modular C++11 graphics middleware for games and data visualization
Game engine
Powerful, mature open-source cross-platform game engine for Python and C++, developed by Disney and CMU
Defold is a completely free to use game engine for development of desktop, mobile and web games.
A fast, scalable, distributed game server engine/framework for C++, include the actor library, network library, can be used as a real time multiplayer game engine ( MMO RPG/MOBA ), which support C#/Lua script/ Unity3d, Cocos2dx and plan to support Unreal.
A powerful free cross-platform RTS game engine. - Report issues at https://springrts.com/mantis/
3D C++ Game Engine - yet another open source game engine
The Atomic Game Engine is a multi-platform 2D and 3D engine with a consistent API in C++, C#, JavaScript, and TypeScript
Improved version of the X-Ray Engine, the game engine used in the world-famous S.T.A.L.K.E.R. game series by GSC Game World. Join OpenXRay! ;)
fheroes2 is a recreation of Heroes of Might and Magic II game engine.