Inventory and belt: your bag, your hands.

Opening the inventory

Press Tab or I (on a controller, Y). The inventory opens on the left with your bag, and on the right with the tabs. When you stand at a station, such as a Workbench, a Furnace, a Forge Bench or a crate, the station's own panel appears in the middle, so you can move things in and out of it while you craft.

The pack and the belt

• The pack is your bag. It holds the things you carry that are not on the belt.
• The belt is eight slots along the bottom of the screen. Press 1 to 8, or turn the mouse wheel, to hold a belt slot in your hands. Press 0 or the backtick key (`) for empty hands. On a controller, LB and RB move along the belt.
• Belt presets: three buttons, numbered 1 to 3, sit beside the Belt heading. Click one to bring back the belt layout you saved there. Shift and click it to save the belt as it is now. A preset that is empty is shown faded.

With Auto tool-swap on (see Controls, audio and accessibility), mining picks up the tool on your belt that breaks what you are looking at fastest.

Moving things

To do this	Mouse and keyboard	Controller
Pick up or put down a stack	Click it, then click where it goes, or drag it	A
Take half a stack	Right click	X
Quick-move a stack to the other side	Shift and click	RT
Drop a stack on the ground	Drag it outside the panel	LT
Drop one item in hand	Z	D-pad right
Move between tabs	Click a tab	LB and RB

On a phone, tap a stack and then tap where it goes, or drag it. Drag it off the panel to drop it.

Starred items, Sort and Drop all

• Star it: select an item and click Star it. Starred items are listed first when the pack is sorted, and Drop all never drops them. Stars are kept on this device.
• Search your pack: once the pack is full, a search box appears. Slots that do not match are dimmed.
• Sort: merges like stacks and tidies the pack, starred items first.
• Drop all: puts the pack's stacks on the ground in front of you. The belt is kept. The first click asks, and a second click within a few seconds does it.
• What is this? opens the Codex entry for the selected item.

Gear

Below the belt is the Gear row, with ten slots. The first five are the suits: Cooling, Pressure, Dive, Radiation and Acid. The last five are armour: a Helmet, a Cuirass, Greaves, Boots and a Shield. Put on a suit or armour by moving it into its slot. Suits matter for going deep; see Going deep.

The tabs

The tabs on the right are:

Tab	What it is for
Travel	At a Beacon: travel between depths.
Recipes	Everything you can make, what it needs, and what you are missing and where to find it.
Tools (or Forge, Guns, Rockets)	Crafting for the station you stand at. A Forge Bench shows alloys and suits too.
Lab	At a Lab Bench: analyse a sample of an unknown material.
Build	Shapes, looks, helper tools, rotation, mirror, symmetry, undo and redo.
Blueprints	Save a copy of a build, paste it again, and share it as text or a file.
Codex	What you have discovered. See The Codex.
Collection	Everything you have found, in groups.
Skills	Your skills and their levels.
Goals	Daily and weekly goals, and badges.
Research	Research points and what they open.
Jobs	The jobs you have on. See Map, jobs and goals.
Materials	Builder mode only: pick any material.

The Owned items button on the Tools tab opens everything you bought in the Store or made in Starforge, so you can craft from it, with a search box. See Starforge: how to build.

Blueprints

Use the blueprint tool (B) to copy a build, then give it a name and save it on the Blueprints tab. From there you can preview it as a ghost where you aim, with a list of what it still needs, paste it, copy it as text to send to a friend, or save it as a file. You can also paste a blueprint's text into the import box, or drop a blueprint file on the panel.

Tips

• Star the things you always need, such as your pickaxe, your food and your building blocks, so a Drop all never takes them.
• Use the belt presets to keep one layout for mining and another for building.
• Your bag can be full before you notice. The Sort button appears when the pack is full.

← Back to the wiki · Last updated 25 October 2026. Mantlenaut is in alpha, so things change.