CTFs as you need them
Cross-Platform C++ 2D/3D game engine
A free (libre) open source, mobile OS for Ethereum
2D game development library for Ruby and C++
ThinkPHP Framework
A nonsense activity generator
A fast and reliable entity component system (ECS) and much more
Tactical 2D shooter in fishy pixels style. Made with Rust-lang
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Flexible level editor
The flexible game engine
A program that allows the user to AFK in Apex Legends games
Enables Roblox developers to use professional software tools
Distributed server for social and realtime games and apps
Open Source MMORPG Framework
The game engine for everyone
An open source reimplementation of the Among Us Server
Questie: The WoW Classic quest helper
The quadplay fantasy console
A Flutter based game engine
A retro game engine for Python
A node.js plugin to integrate nw.js/electron games with steamworks
dhewm 3 main repository
Solar2D Game Engine main repository (ex Corona SDK)
Self-hosted CMS platform based on the Laravel PHP Framework