TL;DR

So, you don’t care about a lot of text? I’m still fine with that.
You get the GOLDEN HAT for your amazing support 💖.
NOTHING more, NOTHING less.

what’s included 🐹🎩

• the GOLDEN HAT for PEBI's main window to wear 🐹🎩
  
• the option to enable/disable the hat ✅
  
• the knowledge that you support us even more 💖

what’s NOT included 👎🐹

Unfortunately we haven’t found a way to add achievements to a DLC exclusively. To make sure that all the awesome folks out there who have bought the PEBI are able to 100% complete the achievements (whether or not they want to buy the DLC), we had to leave the achievements out.
We are really sorry that we aren’t able to give you additional GOLDEN HAT achievements at the current time :(
Anything else that is not explicitly listed as included is not included.