Four teams from across the globe, including a student and hobbyist game developer, have created four games in four days on Microsoft's XNA game studio express. The challenge was part of the Game Developers Conference is San Franciso, where the aim was to create an original game over the period of the event.

All four games have now been released in the public domain and can be downloaded here (a copy of XNA game studio express will be needed to play the games).

Game details

“DungeonQuest,” a 3D action RPG from independent game developers Benjamin Nitschke and Christoph Rienaecker from exDream in Germany. Benjamin and Christoph managed to include two player co-op multiplayer in this expansive dungeon crawler.

“Simian Escape,” from independent game developers Jonathon Stevens and Patrick Glanville from the United States, is a 2D run-and-jump game in a prehistoric setting built with the help of Torque X.

“Damage Control” is a game created by hobbyist game developer Josh Butterworth from the United Kingdom with the remote assistance of Maher “m0dus” Al-Samkari and the NeoGAF community. Damage Control is a four player multiplayer siege game where you must defend your base from wave after wave of invading aliens.

“AbduX,” from graduate student game developer Andre Furtado from Brazil, is a zany action game that turns the tables on the classic humanity vs. aliens formula. This time, the player assumes the role of an alien and pilots a flying saucer through the countryside to abduct unsuspecting earthlings while trying to avoid detection. What’s impressive about AbduX is how it incorporates voice recognition commands to control functions of the spacecraft.

Source :: XNA creators