Relic Altar

The relic altar is an unofficial name for a room added in the Supply Crate update. It has also been referred to as the “mysterious altar”. It has its own icon on the mini-map.

The room spawns on any floor both in the main game and in Othermine. It acts as relic storage across runs. It is empty when it is discovered for the first time in a player's save file. When the Peasant puts a relic on it, it will stay there for future runs. The placed relic is not affected by items like or  and does not appear in relic rooms or shops, except for the.

You can put combined relics on altars but the relics that make the combined relic will be removed from the relic pool.

Altar Behavior
If the Peasant picks up the relic, they must replace it with another relic. It can be the same relic they picked up from the altar. The altar interacts differently with certain relics:

Special Behaviour

 * appears in subsequent runs instead if is placed down. However in subsequent runs after  is removed from the altar placing  on the altar will remain as.
 * disables two relics, however these relics can be re-enabled with the relic altar by placing and removing the relics that were disabled on the altar.

Positive Behaviour
The altar has a unique behavior which allows it to reset relics with counters by placing then removing the following relics:
 * will be reset to 0 doors unlocked.
 * allows for infinite transmutes on the floor with the relic.
 * restores back up to 2–4 charges regardless of how many it had before being placed down.
 * can be placed on the altar used, then taken off and used again on the next floor.

Cannot be placed on the altar
The relics that cannot be placed on the altar include:
 * shouldn't be able to be placed on the altar but might currently be bugged.
 * shouldn't be able to be placed on the altar but might currently be bugged.
 * shouldn't be able to be placed on the altar but might currently be bugged.
 * shouldn't be able to be placed on the altar but might currently be bugged.

Major Negative Behavior
If placed on the altar during a run these relics will reset counts that have been built up over the course of the run.
 * will reset its curse count when placed on the altar.
 * : Bomb damage will reset.
 * will only give US$10000 from the altar on the run it's placed.
 * will reset damage gained from used blessings.
 * resets loses HP.
 * resets.

Minor Negative Behavior
These relics will not have their intended pickup behavior but it's not a major issue as the permanent buffs still apply.
 * will not drop a potion on picking up from the altar.
 * doesn't give a blessing when picked up from the altar.
 * when picked up off the altar will have an empty armor slot.
 * when picked up off the altar will have an empty armor slot.
 * when picked up off the altar will have an empty armor slot.
 * when picked up off the altar will have an empty armor slot.
 * when picked up off the altar will have two empty armor slots, but will still provide the damage buff.
 * doesn't give the curses on pickup from the shop, which is a default damage boost.

Neutral Behavior
If placed on the altar these relics might lose a temporary buff, but it can be gained back quickly.
 * resets but doesn't give the max HP lost back.
 * will reset to 0 food if it is added to the altar with food in it.
 * resets to 0, but is easy enough to refill.
 * loses temporary damage.
 * loses temporary damage.

Not Affected
These are relics that would be normally expected to be affected by being placed on the altar but are not.
 * : Temporary debuff will not disappear when placed on the altar.
 * : Temporary debuff will not disappear when placed on the altar
 * : Temporary debuff will not disappear when placed on the altar.
 * : Temporary debuff will not disappear when placed on the altar.
 * : Temporary debuff will not disappear when placed on the altar.
 * : Temporary debuff will not disappear when placed on the altar.