Cross-platform 2D game engine (+ full OpenGL, +full OpenGL ES )
Portable version of the incredible Godot Game Engine
An isometric arcade-style game of skill, puzzles and exploration
Retro game engine for creating games like it's 1997
Full featured MUD server with all the trimmings.
Ze Text Adventure game Builder : Create as you play !
A conservative source port of Wolfenstein 3-D
Game framework with AI
Amateur 3D Game Engine
API (C#) for simulating certain aspects of a ZX spectrum for porting.
Open source reimplementation of GTA San Andreas game engine in Unity
Opensource crossplatform Fallout 2 game engine writen in C++ and SDL
Game engine to build text adventures.
A simple tool to allow Chessmaster 10/11 bot customizations
This project brings to Symbian hundreds of good old adventure games.
Javascript library for making tile based games
A fork of dhewm3 with an emphasis on modernisation and vanilla Doom 3
Vivid is a modern C++ 3D engine using OpenGL4+
RTSish Game Engine
Improved version of the X-Ray Engine, the game engine
Data-oriented and data-driven game engine written in Rust
RPG dice roll simulator for vintage Tandy TRS-80 100/102/200 laptops
Free and Open Game Programming Language for Windows and GNU/Linux
Game engine for playing tomb raider 1 - 5 levels.