@springwurm, as noted already, this is a problem caused by the game distributor, who did no testing on Linux at all. Even if you'll manage to run the game, it will be unplayable due to ancient DOSBox version bundled with...
> Hello @springwurm, this issue should be mentioned to the game's dev(s). Ups, i just saw, someone opened a thread some time ago: https://steamcommunity.com/app/733760/discussions/0/1692659135907023697/