Open General is a completely free turn-based strategy game that, in the words of its creator, is the evolution of the legendary 'Panzer General II' from Strategic Simulations Inc. So much so that all the content developed for that game is compatible with this one.
Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
Enable snapd
On Debian 9 (Stretch) and newer, snap can be installed directly from the command line: