3D and 2D game engine written in Rust
Stride (formerly Xenko), a free and open-source cross-platform C# game
Fast and lightweight JavaScript game engine built on WebGL and glTF
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
SDL based generic 2D game engine
3D C++ Game Engine - yet another open source game engine
2D Game Engine
Multi-platform game engine similar to old Megaman with a stage editor