JK's Save Manager Switch Edition
The Shiptest Codebase
3D game engine/framework in C, with Luajit and Python bindings now
C-evo Distant Horizon; Empire Building Game
The game engine for everyone
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Open source clone of the Age of Empires II engine
Open source simulation game based on Transport Tycoon Deluxe
KorGE Game Engine. Multiplatform Kotlin Game Engine & Korlibs
Widelands is a free, open source real-time strategy game
A language package for Minecraft Mods
The Tiny JavaScript Game Engine That Can!
Access GameLift resources and integrate GameLift into your Unity game
Mangos ZERO is a server for World of Warcraft
A Flutter based game engine
An elegant Go board and SGF editor for a more civilized age
Just another ComputerCraft fork
A game of dungeon exploration, combat and magic
A game engine with an emphasis on real-time cutting-edge solutions
A lightweight online game framework
Cross-platform 2D game engine focused on ultimate productivity
Cross-platform 2D and 3D game engine with modular architecture
3D game engine with lua scripting
RPG Maker 2000/2003 and EasyRPG games interpreter
A game for learning CSS flexbox