A cross-platform PSP emulator
Desktop/Android/HTML5/iOS Java game development framework
Voxel game-creation platform with easy modding and game creation
Netcode that provides networking capabilities to GameObject workflows
One framework for creating powerful cross-platform games
Do virtual gear shifting (and more) in any rider app
Solar2D Game Engine main repository (ex Corona SDK)
Home theater software and entertainment hub for digital media
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Open-source engine for Heroes of Might and Magic III
A community sourced database of game controller mappings
Cross-platform game engine in Rust
Gideros Release version
... the open-source glide computer
Android, UIQ 3.0, Series 60 Edition 5 open-source software
3D modeler, 3D game maker, 3D demo maker
GemRB is a portable open-source implementation of the Infinity Engine
A completely free, open-source, 2D game engine
Urho3D Game engine
KotCity, an open source city simulator
A cross-platform 2D game engine
A lightweight, fast and extensible game server for Minecraft
Blueshift is a cross-platform 3D game engine implemented in C++
A cross-platform interpreter for many point-and-click adventure games
Open-source, cross-platform, C++ game engine for creating 2D/3D games