http://bugs.winehq.org/show_bug.cgi?id=33786
--- Comment #17 from Alistair Leslie-Hughes leslie_alistair@hotmail.com 2013-06-15 01:56:04 CDT --- (In reply to comment #16)
(In reply to comment #15)
Fixed by 33c440fb227d8429d9ef3a9606ccc7b216d65d45.
Although you fixed the InvalidCastException, the issue I opened this bug about, System.OverflowException is still there. You changed the title. The game still doesn't launch the map.
Follow bug #31269 for the System.OverflowException issue.