HTML5 Phigros chart player/simulator
RPG Maker 2000/2003 and EasyRPG games interpreter
Universal Aim Assist Framework
An open source re-implementation of RollerCoaster Tycoon 2
A Minecraft Mod about Matter and Energy
The most legit & advanced Poketwo autocatcher
Aim assistance for blocks and mobs
Archipelago Multi-Game Randomizer and Server
Access GameLift resources and integrate GameLift into your Unity game
One of the best Prodigy hacks
Game Boy and Game Boy Color emulator written in C
A Game Server Skeleton in golang
Voxel game-creation platform with easy modding and game creation
Open-source rhythm game
Feed reader (and podcast player) which supports RSS/ATOM/JSON
The main repository for the development of the evolution game Thrive
Multi Theft Auto is a game engine
Magic Another Game Engine
The Oldschool Runescape API wrapper that does more
Classic overhead run-and-gun game
A Hypixel skyblock stats website
A bridge/proxy allowing you to connect to Minecraft
Build multiplayer web games played by millions
A lightweight, high-performance full-stack middleware
You can make it - Open Source MMORPG Platform