I bought it and only played a couple of hours while in early access. I fired it up yesterday for a few hours and started a new save. I played it again today, beat the first boss and made to a place called the clock tower. I don't like to look at the achievements list in case the description contains spoilers, so I only look at them to see what I unlocked and after beating a game to see what I missed. During the whole time I played I never saw any achievement popups, so after quitting, I decided to check my profile page and it shows I have no achievements unlocked.