https://bugs.winehq.org/show_bug.cgi?id=51296
--- Comment #6 from Leseratte10@vodafone.de --- Putting this executable into the same folder as the game and then running that instead of the main "Fritz und Fertig.exe" executable should get the demo running.
The audio is playing weird and it will probably crash once there's actual gameplay because it's not the correct executable, but it does get you to the "welcome" screen where you have to enter your name and you can see the cursor being broken.
https://web.archive.org/web/20210819191744/https://download1589.mediafire.co...