You should have a text file called stonehearth inside this directory: C:\Program Files (x86)\Steam\steamapps\common\Stonehearth
There should be a text file called stonehearth.json, and another text file called stonehearth.log, which is the one we need to take a look at.
But it is possible that the game failed before being able to generate the stonehearth.log. I’ve given you permissions to upload files to the forum.
Which troubleshooting steps did you already attempt?
Do you have a crash.dmp in the C:\Program Files (x86)\Steam\steamapps\common\Stonehearth folder that you can upload?
The log doesn’t show anything weird except that “Memory Stats: Fatal Exception” near the beginning, can’t tell where is it coming from but it seems the game continued after that.
Have you tried changing “force_32_bit” to true in your user_settings, saving them, and then running the game from the folder instead of from Steam?
If the game doesn’t crash in 32bit then it’s probably caused by a 3rd party application that’s messing with the game. Didn’t see any of the known ones in your crash.dmp, so I’m not sure what’s exactly causing it.
Have you tried adding an exception for the game in your antivirus?