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Nuclear Craft UPdated

A modern port of NuclearCraft for 1.21 featuring advanced nuclear reactors, realistic fuel processing, and complex radiation mechanics for high-tech gameplay.

File Details
DownloadInstall

NuclearCraft-1.21.1-1.3.0.jar

Byuser_s5cqyz4aya9rg9l8
  • B
  • Mar 29, 2026
  • 16.09 MB
  • 22
  • 1.21.1
  • NeoForge

File Name

NuclearCraft-1.21.1-1.3.0.jar

Supported Versions

  • 1.21.1

Curse Maven Snippet

NeoForge

implementation "curse.maven:nuclear-craft-updated-1489663:7843491"
Curse Maven does not yet support mods that have disabled 3rd party sharing

Learn more about Curse Maven

NuclearCraft Neoteric - NeoForge 1.21.1 Port Build: 2026-03-29

Bug Fixes

  • Fixed client crash when holding Patchouli books — OverworldBiomeBuilderMixin was injecting nuclearcraft:wasteland into the biome builder during VanillaRegistries.createLookup() because ModConfigSpec.ConfigValue.get() returns its default value (true) before configs are loaded, bypassing the intended guard. Added WorldConfig.isLoaded() check to all three mixin inject methods so the wasteland biome is only injected after configs are fully initialized.
  • Fixed JER (Just Enough Resources) failing to initialize — The same unreferenced biome key caused BiomeRestriction.<clinit> to throw ExceptionInInitializerError, killing the entire JER JEI plugin before it could register any ore data. Resolved by the same mixin fix above.
  • Fixed wasteland_surface placed feature missing BiomeFilter — Added BiomeFilter.biome() to the placement modifier list for the wasteland surface feature, resolving a datagen validation error.
  • Removed broken AddPackFindersEvent registration — A previously added pack finder was producing a null pack and crashing singleplayer world selection. Removed entirely.
  • Removed spurious DeferredRegister<Biome> registration — Was contributing to biome registry noise without purpose.

Known Issues

  • NC ores do not appear in JER (JER does not auto-discover mod ores — requires explicit compat registration)
  • neoforge:fissile_fuel and neoforge:nuclear_waste fluid tag warnings remain (cosmetic, no gameplay impact)