fheroes2 is a recreation of Heroes of Might and Magic II game engine
A complete 3-D game development suite written in Java
3D Game engine with editor
A Flutter based game engine
Multi-platform 2D and 3D game engine
A Complete WebGPU Game Engine for Browser & Desktop Arcade Oriented
An isometric arcade-style game of skill, puzzles and exploration
A cell-based puzzle game featuring classic and completely new puzzles
Full featured MUD server with all the trimmings.
PyCAPGE - Python Classic Adventure Point and Click Game Engine
A conservative source port of Wolfenstein 3-D
Open source reimplementation of GTA San Andreas game engine in Unity
Go 3D Game Engine
Real-time RPG for PC/tablet/phone; multiple quests and random dungeons
A retro style video game engine for RPGs and adventure games.