Journey Mode Menu

Ever wanted Terraria's iconic Journey Mode duplication system in Minecraft 1.12.2, but without the game-breaking flaws of old emulation mods?

Journey Mode Menu brings a fully functional, highly optimized research and duplication system to your world. Sacrifice items to unlock them forever, manage your progress via a clean GUI, and enjoy an evolutionary leap over classic transmutations.

Unlike famous alternatives like ProjectE, this mod is designed from the ground up to respect and protect server economy while providing unmatched Quality-of-Life features.

Key Features

Sacrifice & Replicate: Research items by consuming them. Once you've analyzed enough, you can duplicate them infinitely.
True NBT Data Support: The ultimate game-changer. The mod perfectly saves and restores unique item states (Enchantments, Tinkers' Construct tools, Energy cells, Spawn Eggs, and custom names).
Exploit-Proof System: Dynamic NBT tags (like durability or unique player IDs) can be ignored via config to prevent endless dupe loops and maintain progression balance.
Blazing Fast Performance: Rewritten architecture using optimized HashSet caching ensures O(1) performance. Zero lag spikes, even on massive modpacks with thousands of items.
Vanilla-Like QoL Commands: Powerful, smart commands with comprehensive multi-stage Tab-autocompletion.
Standalone & Lightweight: No heavy dependencies, works out of the box with any Forge 1.12.2 modpack.

Commands & Controls

Press J to open the custom GUI and view your entire research library.

Player & Admin Commands:

/jm consume [amount] — Safely consumes the specified amount (or all) of the items in your hand to advance research.
/jm give id@meta [amount] [NBT] — The ultimate QoL duplication command. Supports smart id@meta syntax and autocompletes saved NBT states on the fly!
/jm progress — Displays your current research completion progress.
/jm research [amount] — (Admin Cheat) Instantly grants research progress for the item in your hand without consuming it.
/jm remove — Removes the selected item from your research library.
/jm clear — Completely wipes your research data (use with caution!).
/jm ignore — (Admin Debug) Displays the exact NBT structure of the item currently in your hand. Essential for identifying tags you want to blacklist.
/jm ignore add [NBT_key] — Adds a specific NBT tag to the global blacklist. Items with this tag will be researched without it (e.g., ignoring durability or player-specific data).
/jm ignore remove [NBT_key] — Removes a tag from the NBT blacklist, returning it to strict tracking.