Online Fragging at it's Best.

Alien Arena features immersive arenas, freaky and violent weapons, and a vibrant community.

Find matches based on skill level using the in-game match maker, or join #alienarena @ irc.planetarena.org for pickup matches and tournaments.

If socialization isn't your thing, you can play offline against computer generated AI(bots). All wrapped in a unique, retro sci-fi theme!

Open Sourced. Ever Evolving.

Alien Arena runs on the open sourced CRX Gaming Engine. Born of the id Software source code in 2002, CRX has improved by leaps and bounds over the years.

The game is continually updated and receives gameplay, engine, and content enhancements very regularly.

No other free game of this type has the dedication, drive, and committment to delivering a first rate gaming experience.

Learn About Alien Arena.

Alien Arena Informational Sites.
Need help getting started with Alien Arena? Looking for clan information, tournaments or other happenings? Then check out these community built Alien Arena websites that can get you heading in the right direction!

Download Free Content.

Get Custom 3rd Party Maps and Models.
From maps to models, from sounds to custom HUD's and other graphics, there is a ton of additional content from which players can choose to expand upon their game

Become One of Us.

Join the Alien Arena community!
Visit our forums and talk to other players, join clans and participate in community organized tournaments. Folks are friendly, helpful, and willing to show you the ropes.

Keep up with the latest Alien Arena happenings!

Get Alien Arena on STEAM!

Alien Arena to be at Winter Dreamhack!

Dreamhack 2017