91
I've been playing xonotic and DAMN is it fun
(xonotic.org)
If it's free and open source and it's also software, it can be discussed here. Subcommunity of Technology.
This community's icon was made by Aaron Schneider, under the CC-BY-NC-SA 4.0 license.
Great project, great focus on movement and movement skill. Good guidance/tutorial IIRC.
It's been a long time since I played it. I'm not very fond of arena shooters with weapon-collecting.