The glossary.

Words are in alphabetical order. Each one tells you what it is, what it is for, and where to read more.

A

• Age. A stage of progress in your world. There are eight ages, from the Kindling Age to the Nova Age. Each age unlocks new things to make. See The eight ages.
• Alloy. A metal you mix yourself by melting two or more metals together at the Forge. See Alloys and the Forge.

B

• Beacon. A marker you build from 4 metal and 4 glass. Placing beacons lets you travel between depths instantly. See Going deep.
• Belt. The eight slots along the bottom of the screen. Press 1 to 8 to pick the slot you are holding. See Inventory and belt.
• Blueprint. A copy of a building you can paste somewhere else. Press B to use the blueprint tool. See Blueprints and symmetry.

C

• Codex (K). Your in-game guide. It lists everything you have found: materials, creatures, tools and more. Press K to open it. See The Codex.
• Coreforged. A tool made from metals found at the very core. It is the only tool that breaks Stellarite. See Going deep.
• Crafting. Making items from materials. Open your bag with Tab and use the Craft tab. See Crafting stations.

F

• Fighter. A small ship you fly out of your mothership. There are 50 to fly. See All fifty fighters.
• Furnace. A block that melts ore into metal. It needs fuel, such as wood or charcoal. See Smelting and fuel.
• Forge Bench. The station where you make and combine metals and forge the better tools and suits. See Alloys and the Forge.

G

• Gate. A structure in space that links to other places in the galaxy. See The Gate and the Vector Drive.

H

• Hotbar. Another name for the belt. See Belt above.

J

• Join code. A short code your friends type to join your world. See Hosting and joining.

L

• Lab Bench. The station where you analyse unknown materials and name them. See Research and the Lab Bench.
• Lair. The home of a boss. You find it by following signs. See Lairs and comebacks.
• Legend. A giant boss you can fight. See All the legends.

M

• Mine (hold left-click). Break a block by holding the button. Controller: hold RT.
• Mothership. The big ship your fighters fly from and return to. See Ships and fighters.

N

• Nova Alloy. A very strong metal made from Stellarite at the Forge. See Alloys and the Forge.

R

• Relaxed, Normal, Hard, Builder. The game modes. Relaxed and Builder are easier. Builder lets you build with everything. See Game modes.

S

• Starforge. The in-game 3D builder for making your own ships, statues and lamps. See Starforge, how to build.
• Stellarite. A very hard stone found deep in the planet. It needs a Coreforged pickaxe. See Going deep.
• Strata Gauge. The gauge on the right of your screen. It shows how deep you are, how hot it is and how much pressure there is. It turns red when those beat your gear. See Going deep.
• Suit. Clothing you wear in the Gear slots to survive heat, pressure and air. See Suits.

V

• Vector Drive. The drive that jumps your ship a long way through space, using fuel. See The Gate and the Vector Drive.

W

• Wayfarers. The friendly villagers you meet. You can talk to them, trade and take jobs. See The Wayfarers.
• Workbench. The first station you build. It lets you make better tools. See Crafting stations.

Need more?

Start with the Start here guide, then fishing, step by step.

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