I've been playing the Mac version for nearly ten hours now and have not unlocked a single achievement despite defeating Mom and fulfilling a number of other achievement requirements. Now, I know my PC version was jacked up because, on the guidance of THE INTERNET, I deleted some EXE and had Steam fix the install. Upon booting up, I unlocked a handful of easier quests. Unfortunately, Google has not been so kind regarding the Mac version. Is anyone aware of a problem with the Mac version?

I have this problem too. The only chance I can see them fixing the achievements not unlocking for Mac is whenever the DLC is done and released. I kinda feel that the Mac support regarding this issue has been fully neglected at this point, which sucks. Loading up the game on Windows resolved nothing for me either unfortunately.

Also after getting at least one Mom kill, my stats still show up "0" yet I still get the new start screen.