Cocos simplifies game creation and distribution with Cocos Creator
The game engine for everyone
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Open source library for creative expression on the web, desktop, etc.
Cross-platform game engine in Rust
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
A dead simple 2D game engine for Go
2D Game Engine
Real-time RPG for PC/tablet/phone; multiple quests and random dungeons
online 4X browser game engine