47,133 repositories indexed
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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.
Entitas is a super fast Entity Component System (ECS) Framework specifically made for C# and Unity
The Ren'Py Visual Novel Engine
Minecraft: Java Edition 26.3 rewritten from scratch in Rust, checked against vanilla with 281 differential harnesses. Get it with the Horizon launcher.
OpenMW is an open-source open-world RPG game engine that supports playing Morrowind. Main repo and issue tracker can be found here: https://gitlab.com/OpenMW/openmw/
A modern & fully featured HTML5 game engine (2D & 3D) for JavaScript/TypeScript, with WebGL/WebGPU rendering, built-in physics, Tiled map & glTF support and WebAudio.
A procedural textures authoring and 3D model painting tool based on the Godot game engine
2D and 3D physics engines focused on performance.
A high-performance rendering engine replacement for Minecraft, which greatly improves frame rates and reduces micro-stutter
2D JavaScript Physics Engine
Powerful, mature open-source cross-platform game engine for Python and C++, developed by Disney and CMU
Classic Tomb Raider open-source engine
Turbulenz is a modular 3D and 2D game framework for making HTML5 powered games for browsers, desktops and mobile devices.
Disassembly of Pokémon Red/Blue
Open-source, cross-platform, C++ game engine for creating 2D/3D games.
Java / JavaFX / Kotlin Game Library (Engine)
A high performance, editable terrain system for Godot 4.
Cross-platform game engine in Rust.
AI Skills, MCP Tools, and CLI for Unity Engine. Full AI develop and test loop. Use cli for quick setup. Efficient token usage, advanced tools. Any C# method may be turned into a tool by a single line. Works with Claude Code, Gemini, Copilot, Cursor and any other absolutely for free.
Direct port of the Bullet physics engine to JavaScript using Emscripten
A complete 3-D game development suite written in Java.
The official distribution of olcPixelGameEngine, a tool used in javidx9's YouTube videos and projects
Voxel module for Godot Engine
A powerful free cross-platform RTS game engine. - Report issues at https://springrts.com/mantis/