Doom Block
by MisterCosmos
Doom Block is a NeoForge block that kills any mob or player who touches it, dealing 500 damage through armor.
What it does
Doom Block is a block that deals 500 damage on contact, which ignores armor and most protective effects. Any mob or player that steps onto it is killed at once. The mod is meant for building deadly corridors, rooms and traps for survival challenges and map play, where a single wrong step ends the run.
Activation is handled by redstone. A lever, a button or a complex sensor can switch the block on, and a command lets builders place traps exactly where they are needed. The mod also supports automatic systems that trigger traps without a player present. A game rule called blockKillsEntities turns the block's lethality off, which helps when testing custom gameplay. Its settings can be adjusted to suit the pack.
Doom Block is open source under the MIT License and runs on client and server, so the server and every player need it. Files are published for NeoForge across four release versions, 1.21.1, 1.21.4, 1.21.8 and 26.1.2, with 1.1.1 for 1.21.8 as the latest file, first published on 2026-08-24 and last updated on 2026-10-13. The source code is public.
Key features
Instant lethal block
Contact with the block kills a mob or player at once, dealing 500 damage that ignores armor and most protective effects.
Redstone activation
Levers, buttons and complex sensors can switch the block on, so traps can be wired into existing redstone circuits.
Placement by command
A command sets the block exactly where a trap is needed, including under a rug, behind a door or inside a chest.
Lethality toggle
The blockKillsEntities game rule switches the block's lethality off, so custom gameplay can be tested without losing the block.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Survival challenge maps
Corridors and rooms with hidden traps, where a wrong step means the end of the run.
Ambush setups
Blocks placed where a player least expects them, such as under a rug, beside a door or in a chest.
Automatic trap systems
Redstone circuits that trigger the block without a player present, for hands-off defenses.
Who it’s for: Map makers, server owners running challenge or PvP content, and builders who want traps that trigger from redstone and do not depend on a player's armor.
Questions
Does Doom Block need to be installed on the server?
Which Minecraft versions does Doom Block support?
Can the block's lethality be turned off?
In the catalog
Doom Block is one of 8,499 Technology mods on ModsFinder, and one of 3,557 Technology mods for NeoForge. 15,189 mods support Minecraft 26.1.2.
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What the author says
Want to add a real threat to your world that even the best armor can’t protect you from? Doom Block is a block that instantly kills any mob or player on contact, dealing a whopping 500 damage points. Inspired by the mechanics of cult shooters, this mod turns the ordinary Minecraft world into a survival arena. ✅ The…
Official listing
- Modrinth page
- modrinth.com/mod/doom-block
- Owner
- MisterCosmos
- Published
- 2026-08-24
- Updated on Modrinth
- 2026-10-13
- Facts verified
- 2026-10-15