Resurrecting this thread to post a similar issue:
My girlfriend's Mac uses OS version 10.4.11, and she has tried running both the versions from the main download page and the ones created within this thread. All have failed starting up, the program will immediately crash upon opening without any error messages.
I'm not much of a Mac person, so I can't really tell what the problem is; either it's Blockland or it's her Mac, but v12 worked without any issues in the past. I'd appreciate any suggestions and advice that can be offered. Thanks!