DOOMKILL

PRELUDE ONLY: DOOMKILL works in ULTRAKILL's Prelude, levels 0-1 to 0-5. Everywhere else ULTRAKILL plays as normal.

Play the Prelude as Doomguy. You keep V1's full movement, but the arsenal is DOOM's: fists, pistol, shotgun, super shotgun, chaingun and rocket launcher, found as pickups through each level. Health, armor and ammo come only from pickups, and blood no longer heals you. DOOM's status bar and the Doomguy face replace ULTRAKILL's HUD, and punches, parries and the grapple are thrown with Doomguy's fists.

• Keys 1 to 5 or the mouse wheel switch weapons; 3 toggles the two shotguns.
• You start each level with fists and a pistol.
• Your weapons, ammo and armor are saved at every checkpoint.

YOU NEED ULTRAKILL and DOOM + DOOM II, both installed through Steam. All DOOM art and sound is read from your own DOOM II files when the game starts; nothing from either game is in the download. Single player.

Built with AI assistance (Claude).