ArenaLive, an Open Source MMOFPS

ArenaLive is a new open source game based on the well-known OpenArena. Its aim is to become an open-source alternative to id Software's QuakeLive. The main idea is to make a game available in your web browser. So far, the game is playable and provides player stats, straight-forward settings for your account in a web browser and, of course, loads of fun with your friends. At the moment, it is available only for 32/64bit Mozilla Firefox on GNU/Linux, however, support for other platforms and browsers is coming soon. The game is licensed under GNU/GPL2. It's still in an early development stage, so players and developers both are welcome to join.

http://games.slashdot.org/story/09/0...-Source-MMOFPS