Making friends in Brno?

Hi! I (21m) am in Brno over summer on an internship, but I haven’t been able to make any friends. I’ve never been to Czechia before, and I don’t speak the language so I’m pretty limited in where I can go.
I’m happy to put myself out there to meet new people but in general I’m a nerd into D&D, gaming, that sort of stuff in case that’s relevant.
Would anytime know places I could go to meet people my age?

Thanks in advance!