The 🎮 Open Source Game Development (OSGD) Collection is a curated list of freely available open-source game development resources that anyone can access. The purpose of the list is to serve as a central repository of open-source game development projects for anyone to discover, use, or contribute to.
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.
🐍🎮 pygame (the library) is a Free and Open Source python programming language library for making multimedia applications like games built on top of the excellent SDL library. C, Python, Native, OpenGL.
Babylon.js is a powerful, beautiful, simple, and open game and rendering engine packed into a friendly JavaScript framework.
The HTML5 Creation Engine: Create beautiful digital content with the fastest, most flexible 2D WebGL renderer.
Open Source real-time strategy game engine for early Westwood games such as Command & Conquer: Red Alert written in C# using SDL and OpenGL. Runs on Windows, Linux, *BSD and Mac OS X.
A refreshingly simple data-driven game engine built in Rust
Powerful web graphics runtime built on WebGL, WebGPU, WebXR and glTF
Godot Engine – Multi-platform 2D and 3D game engine
State Management and Multiplayer Networking for Turn-Based Games
LWJGL is a Java library that enables cross-platform access to popular native APIs useful in the development of graphics (OpenGL, Vulkan, bgfx), audio (OpenAL, Opus), parallel computing (OpenCL, CUDA) and XR (OpenVR, LibOVR, OpenXR) applications.
Bullet Physics SDK: real-time collision detection and multi-physics simulation for VR, games, visual effects, robotics, machine learning etc.
Distributed server for social and realtime games and apps.
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.
Krita is a free and open source cross-platform application that offers an end-to-end solution for creating digital art files from scratch built on the KDE and Qt frameworks.
Goxel: Free and Open Source 3D Voxel Editor
Animated sprite editor & pixel art tool -- Fork of the last GPLv2 commit of Aseprite
Unleash your creativity with Pixelorama, a powerful and accessible open-source pixel art multitool. Whether you want to create sprites, tiles, animations, or just express yourself in the language of pixel art, this software will realize your pixel-perfect dreams with a vast toolbox of features. Available on Windows, Linux, macOS and the Web!
a multi-system chiptune tracker compatible with DefleMask modules
Command the forces of The Project in a battle to rebuild the world after mankind has been nearly destroyed by nuclear missiles. A 100% free and open source real-time strategy game for Windows, macOS, Linux, BSD+
Diablo devolved - magic behind the 1996 computer game
shapez is an open source base building game on Steam inspired by factorio!
The main repository for the development of the evolution game Thrive.
♞ lichess.org: the forever free, adless and open source chess server ♞