KorGE Game Engine. Multiplatform Kotlin Game Engine & Korlibs
Cross-Platform C++ 2D/3D game engine
A Minecraft Java Edition Launcher for Android and iOS
An iOS & tvOS Frontend for Multiple Emulators
A modern Wine wrapper for macOS built with SwiftUI
Desktop/Android/HTML5/iOS Java game development framework
Cross-platform game engine in Rust
Java/JavaFX/Kotlin Game Library (Engine)
Satisfying monster shooter
The source code to VVVVVV
Open source HTML5 game framework that offers WebGL and Canvas
Open-source engine for Heroes of Might and Magic III
A tool for recompiling Xbox 360 games to native executables
One framework for creating powerful cross-platform games
Open game and rendering engine packed into a JavaScript framework
Flax Engine, multi-platform 3D game engine
UCI chess engine
The game engine for everyone
Solar2D Game Engine main repository (ex Corona SDK)
Netcode that provides networking capabilities to GameObject workflows
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
An open source reimplementation of the Among Us Server
Home theater software and entertainment hub for digital media
A completely free, open-source, 2D game engine
An OpenGL RTS game engine written in C