Sanity

Sanity is a game mechanic occurring at the Shadow Realm from the Lassar Undercity. The sanity will lower as long as the player prolongs in the Shadow Realm or by getting hit from the Lost Soul and The Whisperer attacks, indicated by a hitsplat (). When the sanity meter depletes to 0, the player will receive the message The darkness of the Shadow Realm begins to consume your mind! and will begin to take damage every 2 ticks; this starts at 5 damage, and doubles afterwards; 10 damage at 4 ticks, 20 at 6, 40 at 8, 80 at 10. The sixth occurrence of damage will instantly kill the player, as it would deal 160 damage.

The sanity loss can either be prevented by standing next to the shadow blocker or mitigated by using the revitalising idol. During the The Whisperer battle, sanity is restored when outside the Shadow Realm (in normal mode), killing the cyan Lost Souls during her souls mechanic and successfully stopping her corrupted seed mechanic.