Top C++ Game engines repositories on GitHub

Godot Engine – Multi-platform 2D and 3D game engine

• game-engine
• godot
• godotengine
• open-source
• multi-platform
• gamedev

Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

• gui
• gamedev
• tools
• ui
• toolkit
• native

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.

• cocos2d
• cocos2d-x
• game-engine
• c-plus-plus
• lua
• metal

Luanti (formerly Minetest) is an open source voxel game-creation platform with easy modding and game creation

• c-plus-plus
• voxel
• voxel-engine
• game-engine
• lua
• minetest

Gaming meets modern C++ - a fast and reliable entity component system (ECS) and much more

• header-only
• modern-cpp
• cpp
• entity-component-system
• game-development
• game-programming

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 and Death Stranding 2.

• physics
• vr
• game-development
• cpp
• c-plus-plus
• game-engine

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.

• cocos
• cocoscreator
• game-engine
• game-development
• open-source
• gamedev

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.

• 3d-graphics-engine
• 3d-graphics
• animation
• game-development
• game-engine
• gamedev

Flax Engine – multi-platform 3D game engine

• flax
• flaxengine
• engine
• game-engine
• gamedev
• multi-platform

Piccolo (formerly Pilot) – mini game engine for games104

• cpp
• game-engine
• vulkan
• imgui
• physics
• rendering

Defold is a completely free to use game engine for development of desktop, mobile and web games.

• defold
• game-engine
• c-plus-plus
• clojure
• game-development
• multi-platform

Redot Engine – Multi-platform 2D and 3D game engine

• game-development
• game-engine
• gamedev
• godot
• godotengine
• multi-platform

Lightweight and modular C++11 graphics middleware for games and data visualization

• c-plus-plus-11
• opengl
• webgl
• emscripten
• ios
• android

Powerful, mature open-source cross-platform game engine for Python and C++, developed by Disney and CMU

• game-engine
• open-source
• panda3d
• cross-platform
• python
• panda3d-game-engine

Game engine

• game-engine
• urho3d
• open-source
• game-development
• angelscript
• cross-platform

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.

• server-architecture
• unity3d
• architecture
• gameserver
• game
• unity

A powerful free cross-platform RTS game engine. - Report issues at https://springrts.com/mantis/

• springrts
• c-plus-plus
• lua
• strategy-game-engine
• opengl
• game-engine

3D C++ Game Engine - yet another open source game engine

• game-engine
• game-development
• data-oriented-design
• editor
• entity-component-system
• 3d-game-engine

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! ;)

• directx11
• opengl
• cpp17
• game-engine
• stalker
• xray-engine

The Atomic Game Engine is a multi-platform 2D and 3D engine with a consistent API in C++, C#, JavaScript, and TypeScript

• game-engine
• game-development
• javascript
• csharp
• typescript
• cplusplus

fheroes2 is a recreation of Heroes of Might and Magic II game engine

• homm2
• cpp
• game-development
• game-engine
• game
• strategy-game

3D Engine with Blender Integration

• 3d
• rendering
• game-engine
• blender
• haxe

A game engine with a fully bindless, GPU-driven renderer featuring real-time path-traced global illumination, hardware ray tracing, and a physics simulation running at 200Hz, built over 10+ years of R&D

• game-engine
• imgui
• cpp
• spartan
• taa
• bsdf

Descent 3 by Outrage Entertainment

• cplusplus
• game-engine

Solar2D Game Engine main repository (ex Corona SDK)

• corona
• coronasdk
• cross-platform
• game-engine
• ios
• desktop