Used Protontricks to install fonts (corefonts, tahoma, lucidia)

Also edited the first 2 lines of configuration.ini file (.steam/debian-installation/steamapps/compatdata/109700/pfx/drive_c/users/steamuser/My Documents/Achron/configuration.ini) to set it to a valid resolution (2560x1440)

I haven't spent much time playing, but it seems fine so far.