Full list of all 11 Press X to Not Die achievements. It takes around 3-4 hours to unlock all of the achievements in the base game on Windows.
The base game contains 10 achievements, and there is 1 DLC pack containing 1 achievements.
Finish the game on at least Hard
Finish the game on Ridiculous
Finish the game on Ridiculous without dying
Experience at least 90% of the game
Die in at least 23 different ways
Don't learn your lesson.
Get hit in the nuts in every possible way
Zoom in on Behind The Scenes Photo #8
Finish the game on at least Medium
Chocolate Chocolate. Chocolate? Chocolate.