Shoot a zombie dog or a licker out of the air.

Complete Ada's segment.

Defeat an enemy with a knife.

Destroy a Mr. Raccoon.

Customize a weapon.

Counterattack with a sub-weapon.

Open a portable safe.

Open all of the safes and locks in the game.

Take four full long rests in a single playthrough - adventuring's tiring work.

Consume a parasite and unlock a new power - is it meant to wriggle the whole way down?

Break out of prison after being arrested - aren't you daring?

Craft or upgrade 5 pieces of gear.