The marine and original monsters
Recognise the main threat types in the three-episode campaign.
Original 1993 PC Doom campaign: Knee-Deep in the Dead, The Shores of Hell and Inferno. Shareware includes only the first episode. Ultimate Doom’s fourth episode, Doom II weapons and monsters, and modern port enhancements are outside this hub.
8 characters · one picture per entry · open a picture for full size.
Character directory

The marine
The unnamed marine survives the failed response to the invasion. Health, armour, ammunition and the ability to keep moving determine how well you emerge from each encounter.

Former Human
An early enemy with a firearm. Treat enemies that attack instantly along a clear sightline as a priority when choosing cover.

Imp
Imps throw fireballs from a distance and attack at close range. Use room to sidestep a projectile; avoid retreating into another enemy while watching the first one.

Demon and Spectre
These enemies try to reach the marine for a bite. The Spectre is harder to see.

Cacodemon
A floating enemy that can approach from angles a ground-bound monster cannot. Check upper openings and avoid assuming that a narrow floor route makes a room safe.

Baron of Hell
The tall green-projectile demon requires a sustained response. Reserve room to evade and consider your ammunition before entering an enclosed fight.

Cyberdemon
The rocket-firing boss makes open movement essential. Watch the attack sequence and keep space around you; firing while trapped against a wall is an expensive mistake.

Spider Mastermind
The final episode’s large mechanical foe uses rapid gunfire. Solid cover and a deliberate line of attack are more useful than standing exposed and trading damage.
Quick notes
- Separate firearms from projectiles. Former Humans and Shotgun Guys are dangerous along clear sightlines; Imps and Cacodemons give you a projectile to read and dodge.
- Keep space around melee enemies. Demons and Spectres punish corners and crowded doorways.
- Prepare for boss encounters. Barons, the Cyberdemon and the Spider Mastermind require attention to ammunition and available space.
Identify what is limiting your movement before selecting which monster to attack first.
Picture details
Game artwork belongs to its respective rights holders.
