Patch notes:

Retroactive achievements (this time for sure)! You asked – we listened, simple as that! No more need to replay the game again to get that pesky achievement for Completing Chapter 1 (and tons of other ones). Just load your game, and you’ll get all the achievements you deserve right away (except the Poop one – that you’ll have to remake).

Fixed an issue that caused Global save file (that stores local settings like sounds volume and language) to have wrong extension (*.pcsave instead of *.psgsave) and sync via Steam Cloud.