Latest ioquake3 news:

  • ioquake3 IRC moved to Libera
    The freenode situation is a little complicated, but we moved our IRC presence to the new systems a few days ago due to those events. Today the new owners of freenode responded by removing our control of the #ioquake3 and #iodoom3 channels which makes it pretty clear that sticking with Freenode would have been… Continue reading ioquake3 IRC moved to Libera

For more ioquake3 news, click here.

Thank You!

Thank you to everyone who has ever contributed to ioquake3, this project would not exist without you!

ioquake3 would not be possible without contributions from volunteers and important resources from Digital Ocean,, and Nuclear Monster.

What is ioquake3?

ioquake3 is a free software first person shooter engine based on the Quake 3: Arena and Quake 3: Team Arena source code. The source code is licensed under the GPL version 2, and was first released under that license by id software on August 20th, 2005. Since then, we have been cleaning it up, fixing bugs, and adding features. Our permanent goal is to create the open source Quake 3 distribution upon which people base their games, ports to new platforms, and other projects. We have developed the perfect version of the engine for playing Quake 3: Arena, Team Arena, and all popular mods on modern platforms like Linux, Windows, macOS.

What can I do with ioquake3?

You can use it to play Quake 3: Arena, Quake 3: Team Arena, and the mods people have made for those games. See our Player’s Guide for instructions and help playing ioquake3, or our SysAdmin Guide to get started running your own game server. Or play a game that other great teams using ioquake3 have made if you don’t already have Quake 3.
You can also make your own game from our source code in git on gibhub.

If you like ioquake3 and you’d like to give back, excellent, we could use your help!
Check out the all of the ways to do that by clicking this link or just follow us on Twitter and Facebook to keep in touch.