Ct.js is a desktop game engine that makes learning programming fun
Multi Theft Auto is a game engine
The HTML5 Creation Engine
Svelto ECS C# Entity Component System
Orx: Portable Game Engine
Vivid3D is an open-source 3D engine with powerful 2D UI.
Mini game engine for games104
Retro game engine for creating games like it's 1997
Data-oriented and data-driven game engine written in Rust
scriptable game engine with built-in support for 2D graphics and sound
C++ Text Adventure Engine