Collected a classified document.

Increased max EP for the first time.

Confronted an unpleasant memory.

Acquired a very deadly weapon.

Increased max HP for the first time.

Set all settings sliders in the menu to all the available numbers.

Complete The Stanley Parable.

Awarded for getting any of the other trophies as your first.

Rearrange a sentence to make a cheese pillar.

Rescue all Glitchbirds.

Find all Art Scrolls.

Retrieve the scroll from the top of the star projector.