Alongside winetricks (
https://appdb.winehq.org/objectManager.php?sClass=version&iI...), if you've not seen it before, protondb.com is fantastic. In particular, see
https://www.protondb.com/app/799600 for help in getting Cosmoteer to start.
I'm a huge fan of Lutris these days; community participants wrap the above advice into install scripts, and it's surprisingly common for things to magically Just Work (tm).
