How to run Spore on Linux w/ Steam Play
UPDATE: turns out i was wrong about borderless, you just have to pass both -b and -f in the same command for it to work properly.
quick guide on how to get the game up and running. should clarify, i'm using latest proton-ge, but others should work fine if you still get that black screen and error box. also sorry for terrible audio quality, i don't exactly have the dream setup quite yet.
here's what you need to copy and paste, courtesy of u/wahaa
[Software\\Wow6432Node\\electronic arts\\spore] 1627191375
#time=1d78116fc363040
"appdir"="Spore"
"datadir"="Z:\\home\\your_user_name\\.local\\share\\Steam\\steamapps\\common\\Spore\\Data"
"installcompleted"=dword:00000001
"installloc"="Z:\\home\\your_user_name\\.local\\share\\Steam\\steamapps\\common\\Spore"
"locale"="en-us"
"playerdir"="My Spore Creations"
"reindexyesorno"=dword:00000000