I've just added 5 steam achievements. More are coming, but these 5 are just the first batch to test it out. Let me know if you run into any problems.
There are also 4 brand new pre-release levels you can play right now. The artwork and narration isn't finished yet. They are just gameplay only for now. But I think they're a lot of fun and I hope you enjoy.
Theres also some new secrets. :-]