Re: [Trisquel-users] I am a gamer can you plaease let me knw if these games are ok to install.

[mikko . viinamaki]

Libregamewiki takes a very strict approach to licensing of game media as well  
as code. https://libregamewiki.org/Libregamewiki:Article_policy

flare would seem to fit in nicely!
As far as I understand it looks like unvanquished is not fully free since the  
shaderlabs textures are not commercially usable or redistributable.