Doom

Doormat

Crush a corpse in a door

Timing Is Everything

Kill 2 enemies with a single barrel explosion

Groovy

Get 3 multi-kills with the shotgun

Knee-Deep in the Dead

Beat all the levels in "Knee-Deep in the Dead"

Cookin' With Plasma

Kill 5 enemies in 5 seconds with the plasma rifle

The Shores of Hell

Beat all the levels in "The Shores of Hell"

Overkill

Kill only a single enemy with a shot from the BFG

It's a Secret

Find a secret level

Untouchable

Finish a level with 200% armor and 200% health

Headhunter

Kill one of every enemy

Inferno

Beat all the levels in "Inferno"

Thy Flesh Consumed

Beat all the levels in "Thy Flesh Consumed"

Guns Are For Wusses

Get 25 kills with your fists in a single level

Shoot It Until It Dies

Finish off a Cyberdemon with the pistol

Rookie

Get 25 kills in deathmatch

Showstopper

Get 100 kills in deathmatch

Not a Very Good Secret

Find all the secret levels

I'm the Man!

Beat DOOM in under 2 hours

Completionist

Unlock all trophies in DOOM

Not So Bad

Beat every level on Nightmare in co-operative mode