Per my musing yesterday, I’ve run up some game servers on qbert.
Crossfire is turned off and I’ll wager no one notices. ?
I have Battle For Wesnoth and Teeworlds running right now, ready to go. The Linux crowd will know Wesnoth well, and Teeworlds is good fun for a bit of brainless blasting.
Armacycles/Armagetron is installed, just a matter of configuration before running it up.
The Windows crowd need not fret – all have Windows clients too.
The Game Servers page has all the info you need.