The Goblin and the Butterfly (TGATB) : 2D/3D client for the MMORPG of the same name

The Goblin and the Butterfly (TGATB) is a 2D/3D client for the MMORPG of the same name.

• Licenses : GPLv2
• Operating Systems : Linux, Windows, Mac OS X
• Implementation : C, SDL

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

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