Stride (formerly Xenko), a free and open-source cross-platform C# game
Cross-platform 2D and 3D game engine with modular architecture
Urho3D Game engine
Rust library to create a Good Game Easily
A fresh & lightweight javascript game engine
Web powered cross-platform 3D, WebXR game engine
Orx: Portable Game Engine
An isometric arcade-style game of skill, puzzles and exploration
Pycraft is an open-source, OpenGL based game made in Python
Cross-platform 2D and 3D game engine
Free and Open Game Programming Language for Windows and GNU/Linux
Opensource Game Studio
Real-time RPG for PC/tablet/phone; multiple quests and random dungeons
Open source, moddable game engine for the "Polygon Love 2" game
Conservative port of BOOM 2.02 to modern systems.
Old-school 2D game engine
An authentic Rise of The Triad Dark War source port
Built to be ease of use, with no programming knowledge, Multi-platform
A Complete WebGPU Game Engine for Browser & Desktop Arcade Oriented