Sophisticated Backpacks in FTB Skies 2

This pack includes Sophisticated Backpacks version 3.25.78. The mod adds the Backpack, higher tiers of it, and a set of upgrade items, and the pack's quest book walks you through them.^[1][2]

The tiers that the quests accept are the Copper Backpack, Iron Backpack, Gold Backpack, Diamond Backpack and Netherite Backpack.^[2]

Where the quest book places it

The mod appears in two chapters. In the chapter "the_beginning", "Backpacks" quest asks you to obtain a Backpack. It comes after another quest in that chapter.^[3]

The main home is the chapter "general_storage". It opens with "Sophisticated Backpacks" quest, another Backpack task, which has no quest before it. Two quests follow it directly:^[2]

• "Upgrade Base" quest asks for the Upgrade Base.^[2]
• "Tier Upgrades" quest accepts any of the copper, iron, gold, diamond or netherite backpacks.^[2]

Five more quests come after the Upgrade Base quest:^[2]

• "Stack Upgrades" quest accepts any stack upgrade, from Stack Upgrade Starter Tier up to Stack Upgrade Omega Tier.^[2]
• "Useful Upgrades" quest accepts the Crafting Upgrade, Stonecutter Upgrade or Anvil Upgrade.^[2]
• "Void Upgrades" quest accepts the Void Upgrade or the Advanced Void Upgrade.^[2]
• "Auto-Pickup Upgrades!" quest accepts a pickup or magnet upgrade, either basic or advanced.^[2]
• "Inception Upgrade" quest asks for the Inception Upgrade.^[2]

Unverified Whether the ATM Star path uses this mod is not shown by the sources here. That would be told in the pack's quest book, and the sources here do not show it.

Welcome to the backpacks! Everything here starts with one item, so your first job is simple: make a Backpack. The pack uses its own recipe for it, shown below. Both the early quest chapter and the storage quest chapter ask you to get one, so you'll tick off a quest right away ("Backpacks" quest and "Sophisticated Backpacks" quest).^[2][3][4]

BackpackChanged by the pack

Basic Backpack (sophisticatedbackpacks)

Basic Backpack (sophisticatedbackpacks)

any string	any leather	any string
any string	any wooden chest	any string
any leather	any leather	any leather

Recipe id: sophisticatedbackpacks:backpack

The pack changes this recipe from the mod's default.

What to make, in order

1. Craft the Backpack. Every other quest in the storage chapter comes after it.^[2]
2. Craft an Upgrade Base. The quest for it comes straight after the backpack quest ("Upgrade Base" quest), and many of the pack's upgrade recipes use it as a building block.^[2][4]
3. Pick the upgrades you actually want. The upgrade quests all come after the Upgrade Base quest, so you can choose your own order.^[2]

Upgrade BaseChanged by the pack

Crafting Shaped

Crafting Shaped

any string	any iron ingot	any string
any iron ingot	any leather	any iron ingot
any string	any iron ingot	any string

Recipe id: sophisticatedbackpacks:upgrade_base

The pack changes this recipe too.

Where to go from there

The quest book splits the next steps into a few branches. Here's what each one covers and where to start.^[2]

• Bigger backpacks: a quest right after the backpack one covers the tiered backpacks ("Tier Upgrades" quest). In this pack each tier is an upgrade of the one before it, from Copper and Iron up through Gold and Diamond to Netherite. Start with the Copper Backpack or Iron Backpack.^[2][4]
• Stack upgrades: the quest ("Stack Upgrades" quest) runs from Stack Upgrade Starter Tier up to Stack Upgrade Omega Tier. Each higher tier is crafted from the one below it.^[2][4]
• Workstations: the Crafting Upgrade puts a crafting table in an upgrade tab, and the Anvil Upgrade does the same for an anvil. The Stonecutter Upgrade is in the same quest ("Useful Upgrades" quest).^[2][5]
• Collecting loot: the Pickup Upgrade and Magnet Upgrade are in one quest ("Auto-Pickup Upgrades!" quest) along with their advanced versions. The advanced versions add more filtering options, and the advanced magnet pulls items in from a greater range.^[2][5]
• Getting rid of junk: the Void Upgrade and Advanced Void Upgrade share a quest ("Void Upgrades" quest). The advanced one voids the items you select in its filter.^[2][5]
• The Inception Upgrade has its own quest ("Inception Upgrade" quest), which also comes after the Upgrade Base quest.^[2]

If you already have matching Sophisticated Storage upgrades, the pack also has recipes that convert them into their backpack versions. That covers the pickup, magnet, void, crafting, stonecutter and stack upgrades, among others.^[4]

A Sophisticated Backpack is a portable inventory, and nearly everything interesting it does comes from upgrades that sit in upgrade tabs. Each upgrade adds one behavior: a workstation, a smelter, an automation helper, a fluid tank and so on. Here is how those systems fit together in this pack, as far as the sources explain them.^[5]

Workstations in an upgrade tab

Several upgrades put a vanilla block's interface into a tab, so you can use it without placing the block. The Crafting Upgrade gives you a crafting table in an upgrade tab, the Anvil Upgrade gives you an anvil, and the stonecutter, smithing and sawmill upgrades work the same way. Each Chipped station also has its own upgrade, such as Chipped: Mason Table Upgrade and Chipped: Glassblower Upgrade.^[4][5]

The pack has changed the recipes for these upgrades, so don't rely on what you remember from the base mod. The crafting, anvil and Chipped upgrades are all built around an Upgrade Base. Check the recipe in-game before you plan a build.^[4]

Anvil UpgradeChanged by the pack

Crafting Shaped

Crafting Shaped

Anvil	any diamond gem	Anvil
any iron ingot	Upgrade Base	any iron ingot
Empty slot	any wooden chest	Empty slot

Recipe id: sophisticatedbackpacks:anvil_upgrade

The pack's recipe for the Anvil Upgrade.

Smelting, blasting and smoking

There are two kinds of furnace upgrade. The Smelting Upgrade and Blasting Upgrade give you a furnace-style interface in a tab, and a smoking version exists too. The Auto-smelting Upgrade, Auto-blasting Upgrade and Auto-smoking Upgrade also pull items in and push results out automatically.^[4][5]

The auto versions have filters for what goes in and what counts as fuel, plus speed and efficiency multipliers. The pack leaves all of these at the mod defaults. Here are the auto-smelting values:^[6]

• server.autoSmeltingUpgrade.inputFilterSlots is 8.^[6]
• server.autoSmeltingUpgrade.fuelFilterSlots is 4.^[6]
• server.autoSmeltingUpgrade.smeltingSpeedMultiplier is 1, which equals the speed of a vanilla furnace.^[6]
• server.autoSmeltingUpgrade.fuelEfficiencyMultiplier is 1, which equals the fuel use of a vanilla furnace.^[6]
• The auto-blasting upgrade has its own matching keys, for example server.autoBlastingUpgrade.smeltingSpeedMultiplier, which is also 1.^[6]

You can move between the furnace types without starting from scratch. The pack has recipes that turn an Auto-smelting Upgrade into an Auto-blasting or Auto-smoking one.^[4]

Auto-blasting UpgradeChanged by the pack

Crafting Shaped

Crafting Shaped

any iron ingot	any iron ingot	any iron ingot
any iron ingot	Auto-smelting Upgrade	any iron ingot
Smooth Stone	Smooth Stone	Smooth Stone

Recipe id: sophisticatedbackpacks:auto_blasting_upgrade_from_auto_smelting_upgrade

The pack's recipe for turning an Auto-smelting Upgrade into an Auto-blasting Upgrade.

Auto-smoking UpgradeChanged by the pack

Crafting Shaped

Crafting Shaped

Empty slot	any log	Empty slot
any log	Auto-smelting Upgrade	any log
Empty slot	any log	Empty slot

Recipe id: sophisticatedbackpacks:auto_smoking_upgrade_from_auto_smelting_upgrade

The pack's recipe for turning an Auto-smelting Upgrade into an Auto-smoking Upgrade.

Item handling and automation

The Filter Upgrade filters items that are piped into or out of the backpack, which is how you control hoppers and pipes touching it. The advanced version adds more filtering options. Its filter slot count is set by server.advancedFilterUpgrade.filterSlots, which is 16 here, and the number shown per row is server.advancedFilterUpgrade.slotsInRow, which is 4.^[5][6]

• The Deposit Upgrade moves items from the backpack into an inventory you sneak right-click. The restock upgrade works the other way and refills the backpack from that inventory.^[4][5]
• The Feeding Upgrade feeds you food from the backpack. The Alchemy Upgrade automatically uses potions, food with effects, or milk buckets.^[4][5]
• The Compacting Upgrade compacts items into their compressed variants, but only 2x2 recipes. The advanced version also handles 3x3 recipes.^[4][5]
• The pickup and magnet upgrades pull items into the backpack. The advanced magnet's range is 5 blocks around the storage in this pack, set by server.advancedMagnetUpgrade.magnetRange.^[5][6]
• The void upgrade voids items selected in its filter. In this pack server.advancedVoidUpgrade.voidAlwaysEnabled is true, so the advanced void upgrade can void at any time and isn't limited to overflow.^[5][6]
• The refill upgrade keeps a stack of selected items topped up in your inventory. The tool swapper automatically swaps the item in your hand for the one that's effective on the block or entity you left-click.^[5]

Fluids, energy and experience

The tank upgrade replaces part of the backpack's inventory with fluid storage, and the battery upgrade does the same with energy storage. The pump upgrade moves fluids between the tank and adjacent blocks. The advanced pump also works with fluid containers in your hand and fluid blocks in the world, and it can filter which fluids are pumped. The XP pump moves experience between the tank and the player.^[5]

Capacity upgrades

Stack upgrades multiply how many stacks fit in a slot: 1.5 for the starter tier, then 2, 4, 8 and 16 for tiers 1 to 4. The omega tier multiplies by the maximum value, 33,554,431. Stack downgrades go the other way, dividing by 8, 16 or 32 depending on tier.^[5]

Protection and special upgrades

The Everlasting Upgrade makes the backpack indestructible, and it can't despawn or fall into the void. The pack changed its recipe.^[4][5]

Everlasting UpgradeChanged by the pack

Crafting Shaped

Crafting Shaped

End Crystal	any nether star	End Crystal
any nether star	Upgrade Base	any nether star
End Crystal	any nether star	End Crystal

Recipe id: sophisticatedbackpacks:everlasting_upgrade

The pack's recipe for the Everlasting Upgrade.

The inception upgrade lets you put backpacks inside a backpack. The infinity upgrades make all items in the backpack infinite. The admin-only one limits who can set infinite items and break or pick up the backpack, while the survival version lets all players do it.^[5]

Pack-specific settings

The pack changes several server settings, so don't assume the mod defaults.^[6]

• server.nerfs.maxNumberOfBackpacks is 1 here, down from the mod default of 3. It is the number of backpacks you can carry before getting slowness, so carry only one.^[6]
• server.entityBackpackAdditions.chance, the chance of a mob spawning with a backpack, is 0.05 instead of 0.01.^[6]
• server.entityBackpackAdditions.backpackDropChance, the chance of such a mob dropping its backpack when a player kills it, is 0.05 instead of 0.5.^[6]
• server.entityBackpackAdditions.lootingChanceIncreasePerLevel is 0 instead of 0.15, so Looting does not raise the drop chance.^[6]
• server.allowOpeningOtherPlayerBackpacks is true. Another player can open your worn backpack by right-clicking your back, unless you turn that off in the backpack's settings.^[5][6]

Progression with Sophisticated Backpacks in this pack has two parts: upgrading the backpack itself through its material tiers, then filling it with upgrades. The quest book follows that order. It lives in the general_storage chapter, and the first quest there is just to get a Backpack. The Beginning chapter also has a quest that asks for the same item.^[2][3]

The recipe dump marks every recipe below as changed by the pack, so don't rely on what you remember from the mod's defaults. The recipe blocks show the exact in-pack versions.^[4]

Step 1: The basic Backpack

BackpackChanged by the pack

Basic Backpack (sophisticatedbackpacks)

Basic Backpack (sophisticatedbackpacks)

any string	any leather	any string
any string	any wooden chest	any string
any leather	any leather	any leather

Recipe id: sophisticatedbackpacks:backpack

Both "Sophisticated Backpacks" quest (general_storage) and "Backpacks" quest (The Beginning) ask for this item.

The general_storage quest "Sophisticated Backpacks" quest is the root of the chapter. Every other quest in it sits somewhere below it.^[2]

Step 2: Backpack tiers

The tier ladder runs Copper, Iron, Gold, Diamond, then Netherite. Gold, Diamond and Netherite are each crafted from the backpack one step below. Iron has a shortcut: you can make it straight from the plain Backpack, or from the Copper Backpack.^[4]

1. Copper Backpack: made from the plain Backpack.^[4]
2. Iron Backpack: made from the plain Backpack or from the Copper Backpack.^[4]
3. Gold Backpack: made from the Iron Backpack.^[4]
4. Diamond Backpack: made from the Gold Backpack.^[4]
5. Netherite Backpack: made from the Diamond Backpack.^[4]

Copper BackpackChanged by the pack

Backpack Upgrade (sophisticatedbackpacks)

Backpack Upgrade (sophisticatedbackpacks)

any copper ingot	any copper ingot	any copper ingot
any copper ingot	Backpack	any copper ingot
any copper ingot	any copper ingot	any copper ingot

Recipe id: sophisticatedbackpacks:copper_backpack

Iron BackpackChanged by the pack

Backpack Upgrade (sophisticatedbackpacks)

Backpack Upgrade (sophisticatedbackpacks)

any iron ingot	any iron ingot	any iron ingot
any iron ingot	Backpack	any iron ingot
any iron ingot	any iron ingot	any iron ingot

Recipe id: sophisticatedbackpacks:iron_backpack

Iron BackpackChanged by the pack

Backpack Upgrade (sophisticatedbackpacks)

Backpack Upgrade (sophisticatedbackpacks)

Empty slot	any iron ingot	Empty slot
any iron ingot	Copper Backpack	any iron ingot
Empty slot	any iron ingot	Empty slot

Recipe id: sophisticatedbackpacks:iron_backpack_from_copper

Gold BackpackChanged by the pack

Backpack Upgrade (sophisticatedbackpacks)

Backpack Upgrade (sophisticatedbackpacks)

any gold ingot	any gold ingot	any gold ingot
any gold ingot	Iron Backpack	any gold ingot
any gold ingot	any gold ingot	any gold ingot

Recipe id: sophisticatedbackpacks:gold_backpack

Diamond BackpackChanged by the pack

Backpack Upgrade (sophisticatedbackpacks)

Backpack Upgrade (sophisticatedbackpacks)

any diamond gem	any diamond gem	any diamond gem
any diamond gem	Gold Backpack	any diamond gem
any diamond gem	any diamond gem	any diamond gem

Recipe id: sophisticatedbackpacks:diamond_backpack

Netherite BackpackChanged by the pack

Smithing Backpack Upgrade (sophisticatedbackpacks)

• Netherite Upgrade Smithing Template
• Diamond Backpack
• any netherite ingot

Recipe id: sophisticatedbackpacks:netherite_backpack

This last step uses the smithing_backpack_upgrade recipe type rather than a regular crafting grid.

Step 3: Upgrade Base and upgrades

After the Backpack, the next quest asks for the Upgrade Base ("Upgrade Base" quest). The recipe dump shows it as an ingredient in many upgrade recipes, including the Crafting, Stonecutter, Anvil and Void upgrades.^[2][4]

Upgrade BaseChanged by the pack

Crafting Shaped

Crafting Shaped

any string	any iron ingot	any string
any iron ingot	any leather	any iron ingot
any string	any iron ingot	any string

Recipe id: sophisticatedbackpacks:upgrade_base

Once you have the Upgrade Base, the chapter branches into several upgrade quests. Each one accepts any of the listed items:^[2]

• Stack upgrades ("Stack Upgrades" quest): the Starter Tier, Tier 1 to Tier 4, or the Omega Tier, for example Stack Upgrade Starter Tier and Stack Upgrade Omega Tier.^[2]
• Crafting, stonecutter and anvil upgrades ("Useful Upgrades" quest): Crafting Upgrade, Stonecutter Upgrade or Anvil Upgrade.^[2]
• Void upgrades ("Void Upgrades" quest): Void Upgrade or Advanced Void Upgrade.^[2]
• Pickup and magnet upgrades ("Auto-Pickup Upgrades!" quest): Pickup Upgrade, Advanced Pickup Upgrade, Magnet Upgrade or Advanced Magnet Upgrade.^[2]
• Inception ("Inception Upgrade" quest): Inception Upgrade.^[2]

The stack upgrade ladder

Stack upgrades follow the same pattern as the backpack tiers: Starter, Tier 1, Tier 2, Tier 3, Tier 4, then Omega. Tier 1 can be crafted from the Upgrade Base or from the Starter Tier. Tier 2, Tier 3 and Tier 4 each need the tier below, and Omega is made from Tier 4.^[4]

Stack Upgrade Starter TierChanged by the pack

Crafting Shaped

Crafting Shaped

any copper storage block	any copper storage block	any copper storage block
any copper storage block	Upgrade Base	any copper storage block
any copper storage block	any copper storage block	any copper storage block

Recipe id: sophisticatedbackpacks:stack_upgrade_starter_tier

Stack Upgrade Tier 1Changed by the pack

Crafting Shaped

Crafting Shaped

any iron storage block	any iron storage block	any iron storage block
any iron storage block	Upgrade Base	any iron storage block
any iron storage block	any iron storage block	any iron storage block

Recipe id: sophisticatedbackpacks:stack_upgrade_tier_1

Stack Upgrade Tier 1Changed by the pack

Crafting Shaped

Crafting Shaped

Empty slot	any iron storage block	Empty slot
any iron storage block	Stack Upgrade Starter Tier	any iron storage block
Empty slot	any iron storage block	Empty slot

Recipe id: sophisticatedbackpacks:stack_upgrade_tier_1_from_starter

Stack Upgrade Tier 2Changed by the pack

Crafting Shaped

Crafting Shaped

any gold storage block	any gold storage block	any gold storage block
any gold storage block	Stack Upgrade Tier 1	any gold storage block
any gold storage block	any gold storage block	any gold storage block

Recipe id: sophisticatedbackpacks:stack_upgrade_tier_2

Stack Upgrade Tier 3Changed by the pack

Crafting Shaped

Crafting Shaped

any diamond storage block	any diamond storage block	any diamond storage block
any diamond storage block	Stack Upgrade Tier 2	any diamond storage block
any diamond storage block	any diamond storage block	any diamond storage block

Recipe id: sophisticatedbackpacks:stack_upgrade_tier_3

Stack Upgrade Tier 4Changed by the pack

Crafting Shaped

Crafting Shaped

any netherite storage block	any netherite storage block	any netherite storage block
any netherite storage block	Stack Upgrade Tier 3	any netherite storage block
any netherite storage block	any netherite storage block	any netherite storage block

Recipe id: sophisticatedbackpacks:stack_upgrade_tier_4

Stack Upgrade Omega TierChanged by the pack

Crafting Shaped

9 × Stack Upgrade Tier 4

Recipe id: sophisticatedbackpacks:stack_upgrade_omega_tier

Advanced upgrades

The advanced Pickup, Magnet and Void upgrades are crafted from their basic versions. The Advanced Magnet Upgrade has two recipes: one from the basic Magnet Upgrade and one from the Advanced Pickup Upgrade.^[4]

Advanced Pickup UpgradeChanged by the pack

Upgrade Next Tier (sophisticatedcore)

Upgrade Next Tier (sophisticatedcore)

Empty slot	any diamond gem	Empty slot
any gold ingot	Pickup Upgrade	any gold ingot
any redstone dust	any redstone dust	any redstone dust

Recipe id: sophisticatedbackpacks:advanced_pickup_upgrade

Advanced Void UpgradeChanged by the pack

Upgrade Next Tier (sophisticatedcore)

Upgrade Next Tier (sophisticatedcore)

Empty slot	any diamond gem	Empty slot
any gold ingot	Void Upgrade	any gold ingot
any redstone dust	any redstone dust	any redstone dust

Recipe id: sophisticatedbackpacks:advanced_void_upgrade

Advanced Magnet UpgradeChanged by the pack

Upgrade Next Tier (sophisticatedcore)

Upgrade Next Tier (sophisticatedcore)

Empty slot	any diamond gem	Empty slot
any gold ingot	Magnet Upgrade	any gold ingot
any redstone dust	any redstone dust	any redstone dust

Recipe id: sophisticatedbackpacks:advanced_magnet_upgrade_from_basic

Advanced Magnet UpgradeChanged by the pack

Upgrade Next Tier (sophisticatedcore)

Upgrade Next Tier (sophisticatedcore)

any ender pearl	any iron ingot	any ender pearl
any iron ingot	Advanced Pickup Upgrade	any iron ingot
any redstone dust	Empty slot	any lapi gems

Recipe id: sophisticatedbackpacks:advanced_magnet_upgrade

Converting Sophisticated Storage upgrades

The pack also has recipes that turn Sophisticated Storage versions of several upgrades into their backpack equivalents. These cover the stack upgrades, crafting, stonecutter, void, pickup and magnet upgrades, and the advanced versions. If you already have storage upgrades lying around, you can convert them instead of crafting from scratch.^[4]

Stack Upgrade Tier 1Changed by the pack

Crafting Shaped

Crafting Shaped

any string	Stack Upgrade Tier 2	any string
Stack Upgrade Tier 2	any leather	Stack Upgrade Tier 2
any string	Empty slot	any string

Recipe id: sophisticatedstorage:backpack_stack_upgrade_tier_1_from_storage_stack_upgrade_tier_2

One example. The other conversions in the dump follow the same pattern of a storage upgrade turned into the backpack version.

In this pack, the links between Sophisticated Backpacks and other mods come from crafting recipes. They cover two mods: Chipped and Sophisticated Storage. The pack's quests in the chapters I checked only list Sophisticated Backpacks items, so they don't tie it to any other mod.^[2][3][4]

In the quest book, the general_storage chapter starts with "Sophisticated Backpacks" quest for the Backpack. The Upgrade Base quest "Upgrade Base" quest comes after it, and the upgrade quests follow from there.^[2]

Chipped workbench upgrades

There is one backpack upgrade for each Chipped workbench, so you can use those tables straight from your backpack. The pack changed all seven recipes. The upgrades are Chipped: Alchemy Bench Upgrade, Chipped: Botanist's Workbench Upgrade, Chipped: Carpenters Workbench Upgrade, Chipped: Glassblower Upgrade, Chipped: Loom Table Upgrade, Chipped: Mason Table Upgrade and Chipped: Tinkering Table Upgrade.^[4]

Each one is crafted around the matching Chipped table, such as the Glassblower or the Mason Table. Here are the exact in-pack recipes:^[4]

Chipped: Alchemy Bench UpgradeChanged by the pack

Crafting Shaped

Crafting Shaped

Empty slot	Alchemy Bench	Empty slot
any iron ingot	Upgrade Base	any iron ingot
Empty slot	any redstone dust	Empty slot

Recipe id: sophisticatedbackpacks:chipped/alchemy_bench_upgrade

Chipped: Botanist's Workbench UpgradeChanged by the pack

Crafting Shaped

Crafting Shaped

Empty slot	Botanist Workbench	Empty slot
any iron ingot	Upgrade Base	any iron ingot
Empty slot	any redstone dust	Empty slot

Recipe id: sophisticatedbackpacks:chipped/botanist_workbench_upgrade

Chipped: Carpenters Workbench UpgradeChanged by the pack

Crafting Shaped

Crafting Shaped

Empty slot	Carpenters Table	Empty slot
any iron ingot	Upgrade Base	any iron ingot
Empty slot	any redstone dust	Empty slot

Recipe id: sophisticatedbackpacks:chipped/carpenters_table_upgrade

Chipped: Glassblower UpgradeChanged by the pack

Crafting Shaped

Crafting Shaped

Empty slot	Glassblower	Empty slot
any iron ingot	Upgrade Base	any iron ingot
Empty slot	any redstone dust	Empty slot

Recipe id: sophisticatedbackpacks:chipped/glassblower_upgrade

Chipped: Loom Table UpgradeChanged by the pack

Crafting Shaped

Crafting Shaped

Empty slot	Loom Table	Empty slot
any iron ingot	Upgrade Base	any iron ingot
Empty slot	any redstone dust	Empty slot

Recipe id: sophisticatedbackpacks:chipped/loom_table_upgrade

Chipped: Mason Table UpgradeChanged by the pack

Crafting Shaped

Crafting Shaped

Empty slot	Mason Table	Empty slot
any iron ingot	Upgrade Base	any iron ingot
Empty slot	any redstone dust	Empty slot

Recipe id: sophisticatedbackpacks:chipped/mason_table_upgrade

Chipped: Tinkering Table UpgradeChanged by the pack

Crafting Shaped

Crafting Shaped

Empty slot	Tinkering Table	Empty slot
any iron ingot	Upgrade Base	any iron ingot
Empty slot	any redstone dust	Empty slot

Recipe id: sophisticatedbackpacks:chipped/tinkering_table_upgrade

Swapping upgrades with Sophisticated Storage

Sophisticated Storage upgrades can be converted into Sophisticated Backpacks upgrades with their own recipes, and the pack changed these too. If you already have a storage upgrade, you can turn it into the backpack version instead of starting from scratch. This covers the basic and advanced upgrades, such as the Magnet, Pickup, Void, Feeding, Filter, Jukebox, Alchemy, Compacting and Crafting upgrades. It also covers the smelting-type upgrades and the Chipped upgrades.^[4]

Magnet UpgradeChanged by the pack

Crafting Shaped

Crafting Shaped

any string	Magnet Upgrade	any string
Empty slot	any leather	Empty slot
any string	Empty slot	any string

Recipe id: sophisticatedstorage:backpack_magnet_upgrade_from_storage_magnet_upgrade

The storage Magnet Upgrade becomes the backpack Magnet Upgrade. The other conversions follow the same pattern.

Going the other way is also possible for many upgrades. For example, the Advanced Alchemy Upgrade can be turned into the Advanced Alchemy Upgrade.^[4]

Advanced Alchemy UpgradeChanged by the pack

Crafting Shaped

Crafting Shaped

any plank	Advanced Alchemy Upgrade	any plank
Empty slot	any plank	Empty slot
any plank	Empty slot	any plank

Recipe id: sophisticatedstorage:storage_advanced_alchemy_upgrade_from_backpack_advanced_alchemy_upgrade

Backpack Advanced Alchemy Upgrade converted into the storage version.

Stack upgrades use different names

The stack upgrades don't line up one-to-one by name, so check this list before you convert anything. The storage upgrade becomes the backpack upgrade beside it:^[4]

• Stack Upgrade Tier 1 Plus becomes Stack Upgrade Starter Tier.^[4]
• Stack Upgrade Tier 2 becomes Stack Upgrade Tier 1.^[4]
• Stack Upgrade Tier 3 becomes Stack Upgrade Tier 2.^[4]
• Stack Upgrade Tier 4 becomes Stack Upgrade Tier 3.^[4]
• Stack Upgrade Tier 5 becomes Stack Upgrade Tier 4.^[4]
• Stack Upgrade Omega Tier becomes Stack Upgrade Omega Tier.^[4]

Stack Upgrade Tier 1Changed by the pack

Crafting Shaped

Crafting Shaped

any string	Stack Upgrade Tier 2	any string
Stack Upgrade Tier 2	any leather	Stack Upgrade Tier 2
any string	Empty slot	any string

Recipe id: sophisticatedstorage:backpack_stack_upgrade_tier_1_from_storage_stack_upgrade_tier_2

Storage Stack Upgrade Tier 2 becomes backpack Stack Upgrade Tier 1.

Sophisticated Backpacks shows up in two quest chapters in this pack: a single early quest in "the_beginning" and a full chain in "general_storage". Every quest here is an item-collection task, and none of them have titles in the quest files, so they're identified below by their IDs.^[2][3]

The Beginning

Quest "Backpacks" quest asks you to get a Backpack. It unlocks after another quest in that same chapter is done, so you'll meet it as part of the early progression.^[3]

General Storage

This chapter is the main backpack path. You start with the basic backpack and an Upgrade Base, then pick which upgrades you want to chase. Here's the order:^[2]

1. Quest "Sophisticated Backpacks" quest is the starting point and asks for a Backpack.^[2]
2. Quest "Upgrade Base" quest unlocks after the first one and asks for an Upgrade Base. This is the gate to all the upgrade quests.^[2]
3. Quest "Tier Upgrades" quest also unlocks after the first quest. It accepts one of the higher-tier backpacks: Copper Backpack, Iron Backpack, Gold Backpack, Diamond Backpack or Netherite Backpack.^[2]

Upgrade quests

Once the Upgrade Base quest is done, five upgrade quests open up. They all depend on that same quest, so you can do them in any order:^[2]

• Quest "Stack Upgrades" quest is for stack upgrades. It accepts Stack Upgrade Starter Tier, Stack Upgrade Tier 1, Stack Upgrade Tier 2, Stack Upgrade Tier 3, Stack Upgrade Tier 4 or Stack Upgrade Omega Tier.^[2]
• Quest "Useful Upgrades" quest is for utility upgrades: Crafting Upgrade, Stonecutter Upgrade or Anvil Upgrade.^[2]
• Quest "Void Upgrades" quest is for voiding items: Void Upgrade or Advanced Void Upgrade.^[2]
• Quest "Auto-Pickup Upgrades!" quest is for collecting items: Pickup Upgrade, Advanced Pickup Upgrade, Magnet Upgrade or Advanced Magnet Upgrade.^[2]
• Quest "Inception Upgrade" quest asks for the Inception Upgrade.^[2]

Everything here lives in the server config file for the mod. Most of it is untouched mod defaults, but the pack changed four values, and they all affect how you get and carry backpacks. I'll cover those first.^[6]

What the pack changed

• server.nerfs.maxNumberOfBackpacks is 1 in the pack (mod default 3). It sets how many backpacks you can carry in your inventory before you get slowed down, so carry just one.^[6]
• server.entityBackpackAdditions.chance is 0.05 (mod default 0.01). This is the chance a mob spawns wearing a backpack, so you'll see backpack-wearing mobs more often than the mod default would give you.^[6]
• server.entityBackpackAdditions.backpackDropChance is 0.05 (mod default 0.5). This is the chance a mob drops its backpack when a player kills it, so it is much lower than the default.^[6]
• server.entityBackpackAdditions.lootingChanceIncreasePerLevel is 0 (mod default 0.15). Looting does not raise the backpack drop chance in this pack.^[6]

The slowness itself comes from server.nerfs.tooManyBackpacksSlowness, which is true. server.nerfs.slownessLevelsPerAdditionalBackpack is 1, the same as the mod default.^[6]

Backpack sizes (mod defaults)

The pack does not change any backpack sizes. Inventory slots and upgrade slots by tier are:^[6]

• Leather: 27 inventory slots and 1 upgrade slot.^[6]
• Copper: 45 inventory slots and 1 upgrade slot.^[6]
• Iron: 54 inventory slots and 2 upgrade slots.^[6]
• Gold: 81 inventory slots and 3 upgrade slots.^[6]
• Diamond: 108 inventory slots and 5 upgrade slots.^[6]
• Netherite: 120 inventory slots and 7 upgrade slots.^[6]

Other options worth knowing

• server.maxUpgradesPerStorage limits each backpack to 1 of each: furnace-type upgrades, stack upgrades and the jukebox upgrade.^[6]
• server.disallowedItems blocks Personal Barrel and Personal Chest from being put inside backpacks.^[6]
• server.magnetUpgrade.magnetRange is 3 blocks for the normal magnet. server.advancedMagnetUpgrade.magnetRange is 5 blocks for the advanced one.^[6]
• server.tankUpgrade.capacityPerSlotRow gives the tank upgrade 4,000 mB per row of storage slots.^[6]
• server.nerfs.onlyWornBackpackTriggersUpgrades is false, so active upgrades like magnet and pickup are not limited to the backpack you're wearing.^[6]
• server.allowOpeningOtherPlayerBackpacks is true, so on a server players can right-click a backpack another player is wearing to open it.^[6]
• server.itemFluidHandlerEnabled is false. The config notes this prevents dupe bugs when a backpack is filled or drained as an item in another mod's tank.^[6]
• The mob catcher upgrade has hard limits on slot cost: 18 for the basic one (server.mobCatcherUpgrade.basicMaxSlotCost) and 72 for the advanced one (server.mobCatcherUpgrade.advancedMaxSlotCost). server.mobCatcherUpgrade.hostileMultiplier is 2, so hostile mobs cost double.^[6]