Just Trial Spawners

Backports Minecraft 1.21's Trial Chamber features to Forge 1.20.1. Trial spawners, vaults, breeze, bogged, wind charges, ominous mode, trial-themed mob effects, with full 1.21.1 Trial spawner functionality.

File Details

justtrialspawners 1.20.1-1.1.0

  • R
  • Apr 11, 2026
  • 3.62 MB
  • 100
  • 1.20.1
  • Forge

File Name

justtrialspawners-1.20.1-1.1.0.jar

Supported Versions

  • 1.20.1

Curse Maven Snippet

Forge

implementation fg.deobf("curse.maven:just-trial-spawners-1509987:7910840")
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Just Trial Spawners 1.20.1-1.1.0

Migration System Improvements

  • Added a chunk serializer mixin to rewrite chunk NBT before deserialization to fix block palette resolution
  • Block palette properties from the old Trials mod are now correctly stripped, with the ominous vault state preserved via blockstate property
  • Spawn egg entity extraction now handles maps correctly via item ID remapping
  • Migrated trial spawners now use Just Trial Spawners default config values instead of reading the Trials mod's transient Enemies/Killed fields
  • Migrated spawners and vaults now properly use setChanged() to persist converted data to disk
  • The enable_trials_migration config now defaults to false — enable explicitly when transitioning a world from the Trials mod

Bug Fixes

  • Fixed JTSEventHandler event bus split — LivingDeathEvent and LivingHurtEvent now correctly fire on the Forge bus while EntityAttributeCreationEvent remains on the mod bus
  • Fixed shearing loot table for Bogged: removed unreachable minecraft:alternatives entries in favor of proper weighted item entries

Loot Table Corrections

  • Trial spawners now eject from spawners/trial_chamber/consumables + spawners/trial_chamber/key (matching 1.21 vanilla) instead of vault-level rewards
  • Ominous spawners eject from spawners/ominous/trial_chamber/consumables + spawners/ominous/trial_chamber/key