Item

Items are looted from Chests in the Halls or unlocked from Quests.

There are 4 item types:

Equipment
Bottles
Marks
Artifacts

Equipment items can be equipped from the Item Stash.

Well[]

The Well is a meta-progression mechanic which allows looted items to be reused in future rounds.

Upon completing the quest Chapter II: Ember Grounds
The Wellkeeper, the Wellkeeper NPC is unlocked, and the Well in every Hall becomes active for use.

To make a looted item reusable:

In any Hall, loot an unretrieved item from a chest.
Move to and interact with the Well.
Select the item, then select Retrieve.
In the Camp, select the Wellkeeper and purchase the item.

Notes[]

Sending an Equipment up the Well depletes it for that round. Collecting Extra Buckets increases its number of uses.
For retrieval rules for the different Rarities, see Rarity § Retrieval.
Upon defeating the Lord of the Hall, the Well is immediately warped near the Hero for convenience.

Bag[]

In a Hall, the Hero has a Bag which allows them to store 4 additional items, on top of what is equipped.

Equipment[]

There are 6 types of equipment:

Helmet

Amulet

Ring

Chest

Boots

Gloves

Only 1 equipment of each type can be equipped, except for Rings of which 2 can be equipped.

Item Stash[]

The Item Stash is a storage space where equipment items can be equipped on the Hero after they are retrieved and purchased.

Loadout[]

You can save up to 4 Loadouts in the Item Stash. Each loadout allows you to save/load a specific set of equipment.

Bottles[]

Main article: Bottle

There is no limit to how many Bottles can be retrieved per round.

Bottles stored in the Bag after a Hall is completed are automatically acquired.

Marks[]

Main article: Mark

Marks cannot be retrieved in a round. They are unlocked by completing certain Quests.

Artifacts[]

Main article: Artifact

Artifacts are retrieved by defeating Lords with Agony active, then interacting with the dropped Artifact.

Use of the Well is not required.

Rarity[]

There are currently 3 item rarities:

Common
Uncommon
Rare

By default, items are of Common rarity. When Agony is enabled, Uncommon or Rare items have a chance to drop in chests.

Retrieval[]

Each Rarity has different rules for retrieval:

Common: Retrieved via the Well with a Bucket.
Uncommon: Retrieved via the Shrine of Archeologists with a Bucket.
- The Archeologist's Thread Artifact is required to enable the Shrine of Archeologists.
- Buckets are shared across the Well and the Shrine, i.e. using a Bucket for one reduces the available Buckets for the other.
- Upon defeating the Lord of the Hall, the Shrine is immediately warped near the Hero for convenience.
Rare: Cannot be retrieved.

Chest Rarities[]

Items rolled in Chests have their minimum and maximum rarities determined by the Torment Level (TL) & Agony Rank (AR).

Standard & Small Chests
- Minimum Rarity: ${\textstyle \left\lfloor \max \left(0,0.08\times \left(1+{\text{TL}}+{\text{AR}}\right)\right)\right\rfloor }$
- Maximum Rarity: ${\textstyle \left\lfloor \max \left(1,0.86+0.07\times \left(1+{\text{TL}}+{\text{AR}}\right)\right)\right\rfloor }$
Red Chests
- Minimum Rarity: ${\textstyle \left\lfloor 1+0.05\times \left(1+{\text{TL}}+{\text{AR}}\right)\right\rfloor }$
- Maximum Rarity: ${\textstyle \left\lfloor 1+0.09\times \left(1+{\text{TL}}+{\text{AR}}\right)\right\rfloor }$

	TL + AR
	Standard/Small	Red
Common	0 - 11	N/A
Uncommon	0 - 23	0 - 18
Rare	16 - 35	11 - 35

Mechanics[]

Roll[]

A Roll occurs when a Chest is opened, which calculates the odds for each Item to appear according to these mechanics:

Every Item has a base odds to roll determined by Rarity.
- Common: 4
- Uncommon: 2
- Rare: 1
Certain Items automatically have 0 odds:
- Item variants under the Minimum Rarity
- Item variants above the Maximum Rarity
- Locked Items behind Quests
- Equipped Items
Certain Items have additional odds ("Available Items" refers to unequipped variants of any Rarity):
- Common Items that are Not Sent Up: $+\left(0.2\times {\text{Total Number of Available Items}}\right)$
- Variants of Equipped Items: $+\left(0.2\times {\frac {\text{Total Number of Available Items}}{\text{Total Number of Equipped Items}}}\right)$

Growth[]

Certain items have a Growth (Uncommon) or Growth ↑ (Rare) variant, with a bonus that scales with levels gained while the item is equipped.

For these items, the other variant is always Boost (Uncommon) or Boost ↑ (Rare).
If the item is equipped from the start:
- Growth bonus = Boost bonus at Level 100.
- Growth ↑ bonus = Boost bonus at Level 50.
- Growth bonus = Boost ↑ bonus at Level 200.
- Growth ↑ bonus = Boost ↑ bonus at Level 100.
Levels gained with any variant of the item (including Common) will count for the level bonus.
For Rings, equipping 2 of the same Ring does not result in a double bonus per level.

Power Law[]

Certain items provide an Output that is related to some Input by a power law. The general formula is: ${\text{Output}}=\left({\dfrac {\text{Input}}{C}}\right)^{r}$

$C$ is the value of the Input when the Output value is exactly 1 or 100%.
$r$ is the exponent. $\vert r\vert <1$ if and only if there are diminishing returns.

The items that use this formula (or some variant) are:

Type	Item	Variant(s)
Helmet	War Chief's Visor	All
Amulet	Maiden's Tear	All
	Duelist's Spark	All
	Collar of Confidence	All
	Shepherd's Boon	All
	Blood Catcher	All
Chest	Hunter's Garb	All
Chest	Blood-Soaked Shirt	All
Boots	Electrostatic Treads	Dynamo
Boots	Berserker Boots	Aggregation
Gloves	Bloodstained Wrappings	All
Gloves	Thundercharge Gauntlets	All

On their respective pages, the relation is graphed on a log-log plot for linearity.