A new Minecraft world editor and converter
Classic 2D side-scrolling platformer game
Godot Minimal Theme
Free game engine for development of desktop, mobile, and web games
The source code to VVVVVV
3D and 2D game engine written in Rust
3D Game engine with editor
Flexible level editor
Ct.js is a desktop game engine that makes learning programming fun
V1, Mirror Classic. V2, Mirror Engine: Join Discord for access
Cross-platform 2D game engine focused on ultimate productivity
KorGE Game Engine. Multiplatform Kotlin Game Engine & Korlibs
Minecraft map editor and mod
A framework to build Pokémon RPG games
Make Minecraft Java Edition mods, Minecraft Bedrock Edition Add-Ons
A permissions plugin for Minecraft servers
Games for tomorrow's programmers
Action-adventure game originally released in 2013
Stride (formerly Xenko), a free and open-source cross-platform C# game
Cross-platform 2D and 3D game engine with modular architecture
Cocos simplifies game creation and distribution with Cocos Creator
The Tiny JavaScript Game Engine That Can!
The flexible game engine
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Magic Another Game Engine