Adding Steam Achievements would take me a few days of work. Haven't done Steam SDK stuff for a while, too. Not sure when (or if) I can slot that in. It's a big headache to set up and code. I could probably be motivated to do it if the game sells somewhat well.
These are the two missing scenes (from the walkthrough list):
20| Near the Rock Worms (ask Arakk about punishment training) 21| In the Outhouse in Haven (ask Arakk about punishment training)