Which are your computer specs (CPU, RAM, OS, Graphic card…)?
Did you install any mods?
Next time you get a crash, could you upload your stonehearth.log before you run the game again?
It’s inside C:\Program Files (x86)\Steam\steamapps\common\Stonehearth (assuming a default Steam installation).
If you see a crash.zip file inside that directory after you get the crash, please upload it too.