PrBoom-Plus : A modified PrBoom port

PrBoom-Plus is a modified PrBoom port with uncapped framerate, variable gamespeed, re-record, walkcam, chasecam, full mouselook, FOV, and other features without loss of compatibility with the original Doom.

• Licenses : GPL
• Operating Systems : POSIX, Windows, Mac OS X
• Implementation : C

An object-oriented Game Engine

An object-oriented Game Engine. It abstracts the differences between platforms and allows level/scene coding through script/XML files. Subsystems based on open source libraries. Adaptable to multiple game genres (fps, space shooter, indoor, outdoor, ...)

Freelords : A rewrite of the well-known Warlords II

Freelords is a rewrite of the well-known Warlords II. It mainly resembles Warlords, but also extends the game, e.g. units have hit points and the save, and configuration files have an easy-to-read XML format.

• Licenses : GPL
• Operating Systems : Windows, POSIX, Linux, Mac OS X
• Implementation : Java

HoldingNuts : A multi-platform poker client and server

HoldingNuts is a multi-platform poker client and server. You can play the popular Texas Hold'em variant with people all over the world, meet your friends, run your own games, and even set up your own poker network.

• Licenses : GPLv3
• Operating Systems : Linux, Windows
• Implementation : C, C++, Qt4