Sophisticated Backpacks

A highly advanced backpack mod that turns storage into a full utility system. Backpacks work as portable inventories, placeable containers, automation hubs, and upgrade platforms.

Backpack usage:
– Open with B by default or right-click in hand
– Can be opened from your inventory while hovering over it
– Renders on the player when worn in chest slot
– Curios support for wearing it in the Back slot
– Can be placed in the world with sneak + right-click
– Supports hoppers, pipes, and other automation
– Pick it up with sneak + right-click using an empty hand

Extra features:
– Can spawn in loot chests
– Rare mobs can spawn wearing backpacks
– Supports custom dyeing with main and accent colors
– Wash colors off in a water cauldron

Core upgrades:
– Pickup Upgrade: auto-picks nearby items
– Magnet Upgrade: pulls nearby items and XP into the backpack
– Filter Upgrade: controls automation input/output
– Void Upgrade: destroys filtered junk items
– Compacting Upgrade: auto-compresses resources
– Feeding Upgrade: auto-eats food when hungry
– Smelting / Smoking / Blasting: furnace features inside the backpack
– Crafting Upgrade: built-in crafting grid with JEI/REI/EMI support
– Stonecutter Upgrade: built-in stonecutter
– Jukebox Upgrade: play music discs directly from the backpack
– Restock / Deposit: move filtered items between containers and backpack
– Refill Upgrade: auto-refills selected inventory slots
– Inception Upgrade: allows one level of backpack nesting
– Everlasting Upgrade: immune to lava, fire, cactus, explosions, and despawn
– Toolswapper Upgrade: auto-swaps the right tool or weapon
– Tank Upgrade: fluid storage
– Battery Upgrade: energy storage
– Pump Upgrade: fluid transfer
– Experience Pump: stores XP as fluid and supports Mending repairs
– Anvil Upgrade: portable anvil
– Smithing Upgrade: portable smithing table
– Alchemy Upgrade: auto-uses potions and effect foods
– Infinity Upgrade: infinite item supply for selected slots

Storage scaling:
– Stack Upgrades massively increase slot capacity
– Multiple upgrades stack multiplicatively
– Omega tier raises stack size to maximum integer value
– Stack Downgrades help with precise automation limits

Compatibility:
– Curios
– Chipped
– Reliquary
– Sawmill
– Crafting Tweaks
– JEI / REI / EMI
– Item Borders
– TrashSlot
– Create via integration addon

Config options:
– Adjust backpack inventory and upgrade slots by tier
– Change filter slot counts
– Configure ranges, speeds, and upgrade behavior
– Disable specific backpacks or upgrades for modpacks

This mod is ideal if you want portable storage, automation, crafting, fluid handling, energy systems, and utility tools all in one backpack.