Retro Pong .NET, yet another Pong
C++ Text Adventure Engine
Fallout Mod Manager (FOMM) Fork
2D Gravity simulator, including a simulation of the solar system
A Simple Game Engine
A TBS game written in C++ but the twist is its only console based.
Free open source game created in Unity 3d for Windows 64 bits
Cross-platform port of Arx Fatalis, a first-person role-playing game
Custom Minecraft network
A truly extensible cross-platform game engine
Tactical, turn-based game engine, that uses OpenGL and WinAPI
Open source, moddable game engine for the "Polygon Love 2" game
beatStation is an openFrameworks tapping recorder
realistic truck simulator with 3D graphics done from zero
A fork resurrecting NewWolf (Wolfenstein 3D for OpenGL on Windows)
Open Source Virtual World and MMOG Development Platform
A casual platformer