Godot is a powerful cross-platform game engine
Magic Another Game Engine
Real Time Strategy game engine supporting early Westwood classics
A retro game engine for Python
Free, open source game engine online
Solar2D Game Engine main repository (ex Corona SDK)
Powerful, mature open-source cross-platform game engine for Python
Open source clone of the Age of Empires II engine
A refreshingly simple data-driven game engine built in Rust
A fresh & lightweight javascript game engine
RPG Maker 2000/2003 and EasyRPG games interpreter
The flexible game engine
A Flutter based game engine
Urho3D Game engine
2D game development library for Ruby and C++
Ct.js is a desktop game engine that makes learning programming fun
Game engine supporting many 3D/2D formats and graphic effects
Old-school 2D game engine
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
Data-oriented and data-driven game engine written in Rust
Free and Open Game Programming Language for Windows and GNU/Linux
Blueshift is a cross-platform 3D game engine implemented in C++
online 4X browser game engine
Game engine allows you to create own MMORPG
An online multiplayer turn based strategy game and board game engine.