Feature NBT Deadlock Be Gone
Feature NBT Deadlock Be Gone prevents a world-generation deadlock that occurs when an NBT structure is placed and replaces a block entity during worldgen.
What it does
The bug it addresses is tracked upstream as MC-246262. When a structure containing block entities is placed during world generation, the game can lock up and freeze, and the server stops ticking until it is restarted. The mod is a precaution against that freeze, and it targets the placement of block entities such as spawners, chests, lecterns, beds and signs.
The fix is installed on the server only, so players connect without any extra install. Builds exist for Fabric, Forge and Quilt on Minecraft 1.18.1 and 1.18.2. The latest file for each loader targets 1.18.2, and the code is released under the MIT License as open source. The author notes that the bug appears on 1.18.x and not on earlier releases, and that it no longer occurs in later ones, so the mod matters mainly for 1.18 servers.
Key features
Block entity deadlock fix
Prevents the worldgen freeze that happens when NBT builds replace block entities during world generation.
Covers common block entities
Addresses placement of spawners, chests, lecterns, beds and signs, which are the usual sources of the lock-up.
Server-side operation
Only the server needs the mod, so players can join a protected world with no client installation.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Protecting a 1.18 world
A server running 1.18.1 or 1.18.2 with heavy NBT structure generation can install the mod to reduce the chance of a worldgen freeze.
Who it’s for: Server owners running Minecraft 1.18.1 or 1.18.2 who add NBT structures or mods that place block entities during world generation.
Questions
Does Feature NBT Deadlock Be Gone need to be installed on the client?
Which game versions does Feature NBT Deadlock Be Gone support?
Is the mod still needed on newer versions?
In the catalog
Feature NBT Deadlock Be Gone is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 9,044 mods support Minecraft 1.18.2.
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What the author says
The bug is when placing NBT builds into the world during worldgen, it can deadlock the game if the build is replacing a BlockEntity of any kind. Spawners, chests, lecterns, beds, signs, etc. Which is... bad. Your game locks up and freezes. Ticks are no longer being run. For mods, this bug may occur more often which…
Official listing
- Modrinth page
- modrinth.com/mod/feature-nbt-deadlock-be-gone
- Owner
- TelepathicGrunt
- Published
- 2021-12-25
- Updated on Modrinth
- 2022-04-21
- Facts verified
- 2026-10-15