Respawning Animals

Evidence

Ran on Kiln's test stand (2026-11-04): RespawningAnimalsFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/core/RegistryAccess; RespawningAnimalsFabricClient did not start: java.lang.NoClassDefFoundError: net/minecraft/core/RegistryAccess.

What it needs from Kiln

• an access widener
• Mixin
• net.minecraft.server.MinecraftServer
• net.minecraft.util.random.Weighted
• net.minecraft.world.entity.EntitySpawnReason
• net.minecraft.world.entity.EntityType
• net.minecraft.world.entity.Mob
• net.minecraft.world.entity.MobCategory
• net.minecraft.world.entity.OwnableEntity
• net.minecraft.world.entity.animal.Animal
• net.minecraft.world.entity.decoration.LeashFenceKnotEntity
• net.minecraft.world.entity.vehicle.VehicleEntity
• net.minecraft.world.level.biome.MobSpawnSettings
• net.minecraft.world.level.biome.MobSpawnSettings.SpawnerData
• net.minecraft.world.level.gamerules.GameRule
• net.minecraft.world.level.gamerules.GameRuleCategory
• net.minecraft.world.level.gamerules.GameRules
• net.minecraft.core.RegistryAccess
• Holder.Reference.is()
• BuiltInRegistries.ENTITY_TYPE
• ServerLevel.getGameRules()
• ServerLevel.getNearestPlayer()
• Entity.getType()
• Entity.tickCount
• Player.distanceToSqr()

On the roadmap: Code next to data (0.3), Mixin (0.5)

In the author's words

Animals no longer stay in the world forever, instead they spawn and disappear like monsters.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file respawninganimals-v26.3.0-mc26.3.x+fabric.jar. The scan reads the mod's classes; it does not run them.