Growthcraft Trapper

Growthcraft Trapper returns for Minecraft 1.21.1 on NeoForge 21.1.x. This release ports the complete 1.20.6 feature set and adds several quality-of-life improvements that make traps easier to understand and automate.

Highlights

• Complete Minecraft 1.21.1 / NeoForge port of all fishtraps, animal traps, and the Netherite spawn-egg trap.
• New loot preview tooltips: hover the filter icon inside a trap to see the loot category selected by its current bait and examples of the expected drops.
• New trap-condition check: sneak-use a placed trap to see what it is currently trapping and whether the surrounding area is ideal.
• Optional JEI integration adds Fishtrap Loot, Animal Trap Loot, and Spawn-Egg Trap Loot categories with bait inputs and representative outputs. JEI is not required.
• Standard crafting recipes and recipe advancements are now generated and load correctly in JEI and the vanilla recipe book.
• Trap timing and animal-trap tier scaling have been rebalanced for passive play while keeping valuable spawn eggs appropriately rare.
• Hopper automation, inventory persistence, block drops, and standalone operation have been retained and verified.

Bait quick reference

Fishtraps

• Normal fishing loot: cod, salmon, tropical fish, or bread
• Fortune fishing loot: rotten flesh, pufferfish, or tripwire hook
• Junk fishing loot: other accepted bait

Fortune bait uses treasure fishing with the equivalent of Luck of the Sea III.

Animal traps

• Wheat: cattle drops
• Carrots: pig and rabbit drops
• Wheat seeds: chicken drops
• Leaves: sheep drops

Netherite spawn-egg trap

• Wheat: a chance for cow, sheep, or goat spawn eggs

Important trap behavior

Traps consume bait when an operating cycle completes. If all output slots are full, newly caught loot is lost. Empty traps regularly or use a hopper to collect output automatically.

Requirements

• Minecraft 1.21.1
• NeoForge 21.1.x
• Java 21

Growthcraft is not required; Growthcraft Trapper remains a standalone mod.

For pack authors and server owners

Existing growthcraft_trapper registry identifiers and the mod namespace are preserved. Server-side timing remains configurable in growthcraft-trapper-server.toml.

Full changes: <tt>1.20.6.1...1.21.1.1</tt>