A game engine powered by python and panda3d
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
3D and 2D game engine written in Rust
GemRB is a portable open-source implementation of the Infinity Engine
Ze Text Adventure game Builder : Create as you play !
Full featured MUD server with all the trimmings.
Cross-platform 2D game engine (+ full OpenGL, +full OpenGL ES )
Game engine supporting many 3D/2D formats and graphic effects
A cell-based puzzle game featuring classic and completely new puzzles
RTSish Game Engine
Old-school 2D game engine
Orx: Portable Game Engine
An isometric arcade-style game of skill, puzzles and exploration
Visual Basic 6 2D online adventure game engine
A Complete WebGPU Game Engine for Browser & Desktop Arcade Oriented
The world is no longer the same
Game/Scene Development System
ZDoom 2.8.1 fork focusing on modernisation, performance and stability
Tools and Z80 engine for creating adventure games. (RUST)
Amateur 3D Game Engine
Vivid3D is a C++ IDE/3D engine, with python scripting.