Based on our record, Unvanquished should be more popular than OpenArena. It has been mentiond 4 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Besides that, have you tried openarena? Source: about 2 years ago
There's also OpenArena which is an open source derivative with some active multiplayer servers. Source: over 2 years ago
I would recommend Unvanquished instead. It's basically the same game but FOSS, much more polished, and there's a small but active community. Servers are often empty, but people will eventually come if you join one and you can play against bots in the meantime. Source: about 1 year ago
I enjoyed Tremulous as well. There's currently a sort of revamp (ignoring GPP/Trem 1.2), called Unvanquished. https://unvanquished.net/. Source: over 2 years ago
Unvanquished the fork of Tremulous (who's not developed anymore) could fit. Source: almost 3 years ago
You're probably thinking of Tremulous, which is also forked as Unvanquished. Started life as a Quake 3 mod if I remember correctly. Source: about 3 years ago
Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.
Tremulous - Tremulous is a free, open source game that blends a team based FPS with elements of an RTS.
Quake - Quake is a series of first-person shooter video games released by id Software.
PunchLab - Track the strikes you throw at the punching bag
Unreal Tournament - Unreal is a series of first-person shooter video games developed by Epic Games.
Timerly - A real interval timer