https://bugs.winehq.org/show_bug.cgi?id=48700
--- Comment #5 from Paul Gofman gofmanp@gmail.com --- (In reply to mo78 from comment #4)
How severe is the memory leak?
No idea how often it is going to allocate small memory blocks through HeapAlloc during gameplay. There are endless possibilities to improve this terrible hack to make it more usable with this game, but frankly I am not much interested to do that as it doesn't look it will result in an acceptable fix regardless.
Maybe it worth to file a bug to game's bug tracker or support explaining the issue, I suppose if it gets noticed by any developer there it will get attention as the problem looks unfortunate absolutely regardless of Linux / Wine, even if it did not detected as a problem for Windows users yet. No programmer wants to keep use after free in his program as it may fire in some unexpected and hard to debug way.