How to play on Open Beta?

• Open your Steam 
• Right-click on out of ore game and select Properties
• On properties page select Betas
• Type in code : diggydiggyhole 
• Press check code

Your game will be updating to open beta!

You can any time change it back to base game by selecting on same page under "Beta participation"  dropdown menu "none"

I recommend to always do a copy of your savegame 

Remember Open beta is a test branch that is constantly changed and tweaked. If you find any issues or something is not working as it should you should send Developers a bug report.