Skript is a Bukkit plugin which allows server admins
One framework for creating powerful cross-platform games
Open game and rendering engine packed into a JavaScript framework
A framework to build Pokémon RPG games
The new All-in-One CFW package for the Nintendo Switch
DOSBox Staging is a modern continuation of DOSBox
An open source reimplementation of the Among Us Server
Simple GTK# Paint Program
Solar2D Game Engine main repository (ex Corona SDK)
An updated version of the classic "Basic Computer Games" book
Real Time Strategy game engine supporting early Westwood classics
Gideros Release version
A complete 3-D game development suite written in Java
The HTML5 Creation Engine
Google maps for block game
Open Source MMORPG Framework
A game framework written with osu! in mind.
A charting and data visualization library for Unity
Java/JavaFX/Kotlin Game Library (Engine)
Self-hosted CMS platform based on the Laravel PHP Framework
An open source re-implementation of RollerCoaster Tycoon 2
HTML5 Canvas Tower Building Game
You can make it - Open Source MMORPG Platform
A modern shaders mod for Minecraft compatible with existing OptiFine
A fast and reliable entity component system (ECS) and much more