I'm usually a fan of open source games but rarely do they manage to be actually great. People like giving recommendations like Super Tux Kart that haven't aged well and don't play well. What are some open source games that are legitimately good that I've missed?
I think I only managed to get past the dungeons couple of times and get to the first open space. I tried getting back to it later but learning all the rules about amulets and scrolls wasn't that fun the second time.
Xonotic is my favorite shooter too date. Just start it up and jump into an instaglib game for grapple hook sniper fun. The other game modes are good too though.