https://bugs.winehq.org/show_bug.cgi?id=46955
--- Comment #13 from Sam Bazley sambazley@fastmail.com --- (In reply to Nikolay Sivov from comment #12)
Reverting original commit makes all fontfaces cached, which in turn means that every ever accessed font file remains mapped. Depending on number of fonts you got installed, 32-bit application could potentially run out of memory. Is this game 32-bit?
Yes, the launcher is 32 bit and the game is 64 bit. That would explain why the launcher crashes, and the game itself does not.