Altars

Rooms have a high chance of containing a shrine. If you can't find one, it's likely the shrine is is located in a secret zone accessible through a jumping puzzle.

Normal shrines

Power up shrines

You can offer 1 to increase a stat by 1.

Coin shrine

After depositing an unspecified amount of coins, grants loot to the player.

Key shrine

After depositing an unspecified amount of keys, grants loot to the player. If you currently possess the skeleton key, any regular keys you own will be used.

Three chests (shell game)

Three locked chests appear. Two contain flies and the remaining one holds loot.

Damocles' sword

Activating it deals 25 damage to the player but grants a coin or a key. Can also rarely contain a max health increase upgrade.

Special interactables

These shrines don't appear in regular rooms.

The dish

Located in Helheim 2. After depositing 100 coins, Giant-Slayer Boots will appear. All subsequent runs will spawn the boots.