While looting Living chests the player will have a chance to receive rare items called Inscriptions and Inscription Pieces. At a cost to the crystals capacity players are able to add inscriptions and control some of the rooms generated within the vault.
Inscriptions can be crafted using the Inscription Table with crafting materials that vary depending on the room that is created.
The rooms available to craft are:
| Icon | Name | Type | Description | Recipe |
|---|---|---|---|---|
 |
Chromatic Caves | Resource Room | The Chromatic Caves contain Chromatic Iron ore. | 16x Iron Ingots 2x Vault Gold 4x Inscription Pieces |
 |
Farm | Resource Room | The Farm contains overworld ores and resources that can be required by the crystal. | 64x Dirt 1x Vault Gold 4x Inscription Pieces |
 |
Emerald Caves | Resource Room | The Emerald Caves contain Emerald ore. | 8x Diamond 1x Vault Gold 4x Inscription Pieces |
 |
X-Mark | Challenge Room | The X-Mark room, if completed, will offer a variety of random chests, Jewels and unique items. | 2x Ornate Chest Scrolls 8x Vault Gold 16x Inscription Pieces |
 |
Dragon | Challenge Room | The Dragon room is full of coins. | 32x Bounty Pearls 2x Echo Gems 16x Inscription Pieces |
 |
Crystal Caverns | Challenge Room | The Crystal Caverns contain an assortment of gems. | 64x Larimar 8x Vault Gold 4x Inscription Pieces |
 |
Factory | Challenge Room | The Factory is full of overworld resources including Ancient Debris. It can also rarely spawn a unique chest. | 1x Netherite Block 8x Vault Gold 2x Echo Gems 16x Inscription Pieces |
 |
Village | Challenge Room | The Village can contain Gilded, Living, Ornate or Wooden chests. It can also sometimes spawn a unique item. | 1x Living Chest Scroll 1x Ornate Chest Scroll 1x Gilded Chest Scroll 12x Vault Gold 16x Inscription Pieces |
 |
Raid Room | Challenge Room | The Raid Room offers a selection of rewards for completion, including all chest types, Coin Piles, Unique items, Raid Rocks and Rare Focus. | 256x Emeralds 4x Echo Gems 12x Vault Gold 16x Inscription Pieces |
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Laboratory | Challenge Room | The Laboratory offers a choice of chest types, Coin Piles, Rare Focus or Unique items. | 2x Mystery Hostile Eggs 4x Echo Gems 12x Vault Gold 16x Inscription Pieces |
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Mushroom | Omega Room | The Mushroom Room is full of Living Chests. | 5x Living Chest Scrolls 16x Vault Gold 32x Inscription Pieces 4x Echo Gems |
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Blacksmith | Omega Room | The Blacksmith is full of Ornate Chests. | 5x Ornate Chest Scrolls 16x Vault Gold 32x Inscription Pieces 4x Echo Gems |
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Mine | Omega Room | The Mine is full of gems. | 256x Larimar 16x Vault Gold 64x Inscription Pieces 8x Echo Gems |
 |
Library | Omega Room | The Library is full of Gilded Chests. | 5x Gilded Chest Scrolls 16x Vault Gold 32x Inscription Pieces 4x Echo Gems |
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Cove | Omega Room | The Cove is full of coins and has a chance of a Transmog unlock with a special item found within it. | 32x Bounty Pearls 32x Inscription Pieces 4x Echo Gems |
 |
Painting | Omega Room | The Painting Room generates with random buckets offering all chest types. It can also contain ores in paint drops or coin piles at the bottom. | 2x Gilded Chest Scrolls 2x Ornate Chest Scrolls 2x Living Chest Scrolls 2x Wooden Chest Scrolls 8x Bounty Pearls 8x Vault Gold 32x Inscription Pieces 4x Echo Gems |
 |
Vendor | Omega Room | The Vendor Room is full of shopping pedestals offering a variety of items to purchase. | 32x Inscription Pieces 8x Echo Gems |
 |
Pixel | Omega Room | The Pixel Room contains many Wooden Chests hidden in pixel 3D structures. | 5x Wooden Chest Scrolls 16x Vault Gold 32x Inscription Pieces 4x Echo Gems |