DeSmuME is a Nintendo DS emulator
Open source simulation game based on Transport Tycoon Deluxe
ElvUI for World of Warcraft - Wrath of the Lich King (3.3.5a)
Endless Sky is a sandbox-style space exploration game
Open Source real-time strategy game engine for early Westwood games
Cross-platform rhythm game for the keyboard
A fancy self-hosted monitoring tool
Linux wrapper tool for use with the Steam client for custom launch
Open source clone of the Age of Empires II engine
Open source HTML5 game framework that offers WebGL and Canvas
A game of dungeon exploration, combat and magic
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
The source code to VVVVVV
A nonsense activity generator
The flexible game engine
Free, open source game engine online
Ct.js is a desktop game engine that makes learning programming fun
Moonlight port for Nintendo Switch
KorGE Game Engine. Multiplatform Kotlin Game Engine & Korlibs
A programming font based on the typeface used in Minecraft
Real-time collision detection and multi-physics simulation for VR
Tactical 2D shooter in fishy pixels style. Made with Rust-lang
Free and open source real-time strategy game
Distributed server for social and realtime games and apps
Solar2D Game Engine main repository (ex Corona SDK)