Voxel game-creation platform with easy modding and game creation
Open source library for creative expression on the web, desktop, etc.
A dead simple 2D game engine for Go
New Godot bindings for Swift
Cross-platform game engine in Rust
online 4X browser game engine
Open-source, cross-platform, C++ game engine for creating 2D/3D games
Egret is a brand new open mobile game and application engine
Cross-platform 2D game engine