MineDOOM

Your own Minecraft world becomes a DOOM level. Survive the nights, go to the Nether, then the End, and kill the Ender Dragon.

Press Play and MineDOOM rebuilds the 160×160-block area around the spawn of the Minecraft world you played most recently as a DOOM II level in GZDoom. It uses your real blocks: your terrain, trees, water, houses and villages, all textured from your own Minecraft install.

Blow it all up

Rockets (yours and the Cyberdemon's), the BFG, barrels, creepers and ghast fireballs blast craters into your world, like TNT. Walls come down, roofs and tree canopies get holes, and Nether caves open up. What's underneath is the real stuff from your world: dirt under the grass, then stone and ores.

Minecraft mobs vs DOOM demons

• At night, zombies, skeletons, creepers, spiders and endermen join DOOM's demons. They're drawn from your own Minecraft skins and make their real sounds.
  • Skeletons shoot arrows.
  • Creepers hiss, swell and blow up.
  • Endermen come for you if you look them in the eye, and teleport when you hit them.
• By day, cows, pigs, sheep and chickens wander around. Their meat heals you.
• At sunrise, zombies, skeletons and demons burn in the sun, unless they're in the shade.
• Drops become DOOM gear: bones give bullets, string gives shells, gunpowder gives rockets, and gold nuggets give armor.

The Nether

A nether portal near spawn leads to your world's real Nether. If you've never been there, you get one generated from your Nether blocks. Here it's DOOM's Hell: demons, ghasts, blazes, zombified piglins (hit one and the whole group comes for you) and wither skeletons. There's also a fortress bridge with chests.

The End

Endermen drop ender pearls and blazes drop blaze rods, which MineDOOM crafts into Eyes of Ender for you. Bring 4 Eyes to the End portal frame near spawn and it opens. Then fight the Ender Dragon, with a real Minecraft boss bar: it circles, spits dragon fireballs and dives at you. Kill it and the exit portal takes you home.

Feels like Minecraft

• Minecraft-style HUD: hearts, armor, a hotbar with your DOOM weapons (ammo shown as stack counts), an XP bar and a kill counter, all in Minecraft's font.
• Minecraft's music by day and DOOM's at night, Minecraft's sun, moon and stars, and distance fog.
• Every chest in your world holds DOOM weapons, ammo and armor. Walk up and press Use.

Good to know

• Solo, endless survival. Your day count, kills, Eyes and dragon fight carry across dimensions and saves.
• You need DOOM + DOOM II and Minecraft: Java Edition with at least one world (1.13 or later; tested on 1.20.6). Worlds from the vanilla launcher, Prism, MultiMC, Modrinth, CurseForge and Lunar are found automatically.
• Your Minecraft world is only read, never changed. No game files are included: everything comes from your own copies of both games.
• To get through a portal, stand still in it for a moment, like in Minecraft.

Runs on GZDoom, which Melty installs for you. Made with AI assistance (Claude).