< Doom
As you play Doom, you will encounter monsters. To help you defeat the monsters, Weapons and powerups you will need.
In the following table of monsters, each monster is hyperlinked to its section in a Wikipedia article, Wikipedia:List of enemies in Doom. Spawn Health indicates how much weapon fire is required to kill each monster (in hit points), and Version refers to the game version the monster first appears in:
- S - Shareware version (Doom Episode 1)
- R - Registered/Ultimate version (Doom Episodes 2-4)
- 2 - Doom II
| Monster | Description | Spawn Health | Version |
|---|---|---|---|
| Former marine grunt | Zombified soldier, wields a rifle | 20 | S |
| Sergeant | Tougher, shotgun-wielding zombie soldier | 30 | S |
| Imp | Anthropomorphic hellspawn, claws targets and hurls fireballs | 60 | S |
| Demon | Pink, gorilla-like hellspawn | 150 | S |
| Spectre | Partially invisible gorilla-like hellspawn | 150 | S |
| Baron of Hell | Minotaur-like hellspawn, tears apart at close range and fires green bolts | 1000 | S |
| Lost Soul | Flying, flaming skull | 100 | R |
| Cacodemon | Floating red spheroid, spits lightning bolts | 400 | R |
| Spider Mastermind | Brain-like creature on robotic platform, shoots super-chaingun | 3000 | R |
| Cyberdemon | The strongest monster in the game, fires powerful rockets | 4000 | R |
| Commando | Toughest zombie, shoots chaingun | 70 | 2 |
| Hell Knight | Tamer, recoloured version of the Baron of Hell | 500 | 2 |
| Arachnotron | Smaller version of spider mastermind, shoots plasma rifle | 500 | 2 |
| Pain Elemental | Floating spheroid, belches Lost Souls | 400 | 2 |
| Revenant | Large skeleton, hits at close range, fires heat-seeking missiles | 300 | 2 |
| Mancubus | Both arms shoot fireballs | 600 | 2 |
| Arch-Vile | Blasts targets with fire magic when it can see them, resurrects dead monsters | 700 | 2 |
| Wolfenstein SS | Nazi SS troops in secret levels | 50 | 2 |
| Icon of Sin | Final adversary | 250 | 2 |