The Ren'Py Visual Novel Engine
An updated version of the classic "Basic Computer Games" book
Python MUD/MUX/MUSH/MU* development system
Stride (formerly Xenko), a free and open-source cross-platform C# game
Multi Theft Auto is a game engine
Open source clone of the Age of Empires II engine
Doom-based AI research platform for reinforcement learning
Download Delta Roblox executor for keyless scripting. Latest Update
FlightGear Flight Simulator: free open-source multiplatform flight sim
A planetarium software that shows a 3D simulation of the night sky
Maze creation, solving, exploration, and analysis
A MUD client for Android, iOS, Linux, Mac OS X and Windows
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
3D modeler, 3D game maker, 3D demo maker
A free 3D game engine to create games and realtimes scenes for Windows
A fantasy roguelike game with graphics tiles.
A completely free, open-source, 2D game engine
2D Game Engine
Modern 3D engine and IDE written using C# and C++.
2D Game Engine with Lua Scripting made on top of SFML
Vivid Engine 2 is an open source 3D Engine coded using C# and C++.
A scriptable 2d randomizable maze game
Free and Open Game Programming Language for Windows and GNU/Linux