Just another ComputerCraft fork
High performance UI layout library in C
Game engine supporting many 3D/2D formats and graphic effects
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Europa Universalis 4 save game editor
OpenSoldat is a unique 2D (side-view) multiplayer action game
Orx: Data-Driven Game Engine
Purpur is a drop-in replacement for Paper servers
Arianne is an engine to develop multiplayer online games like Stendhal
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
World Class Leader Board Editor.
VR Adrix Java Works - Paged Lists - Action-Entity Model ...
Retro style, multi-platform soccer game
A 2d shoot 'em up game cr. w. JavaFX. Three enemy types, one end boss.
Mech Station Beta - Tower Defense like Game
PyCAPGE - Python Classic Adventure Point and Click Game Engine
Free, open source game engine online
Free Texas Holdem Poker game using HTML5, CSS and JavaScript
Vivid3D is an open-source 3D engine with powerful 2D UI.
A performance profiler for Minecraft clients, servers, and proxies
Open source voxel world
Engo is an open-source 2D game engine written in Go