I'm a big fan of the old Macintosh game Bolo [0]
There used to be a Linux version but apparently it hasn't been updated to be added to or even compiled on modern Linux kernels and distros.
Someone I know tried to resurrect it a few years back but now I'm wondering if couldn't use OpenCode etc to get it up and running again.
(I did find a recent-ish clone [1] so may start with that)
If you ever do, I’d like to try it out! I don’t game much, but I played Bolo a bit once and enjoyed it.