In vaguely sorted order,

Dominant Species: Marine
Arcs
Food Chain Magnate
Red Dust Rebellion
1830
Shikoku 1889
1882: Assiniboia
Argent: the Consortium
Tournament at Avalon
Sidereal Confluence

rip, sold out alr on diverse direct

you can download executables and move them to /usr/local/bin or some folder in your $PATH instead of using a package manager, but you might end up in dependency hell

are you on the X11 or Wayland version of KDE? FL Studio w/ Vital worked fine for me through WINE on i3, but that uses X11 for rendering

go for it, it's so fun to write