VaultEvent

Ancient Vault The ancient vault is a gatcha that consists of 36 tiles.

Keys are used to unlock the tiles. These keys are obtained through event missions and Nutaku Gold purchases.

When completing the artifact leveling quest make sure to consume each fodder artifact one at a time. Doing more than one at a time only counts as a single level up attempt.

Use the invasion shop to complete the "Purchase from Store" missions.

Users select a grand prize and attempt to find it by opening tiles. when the grand prize is discovered users can move on to the next floor. Each floor unlocks better grand prize options with the most valuable grand prize option unlocking at floor 10.

This event does not work the way it is represented. Many users wrongly assume that with 36 tiles, uncovering 19 of them should get us the grand prize 50% of the time. This is not the case. instead you can expect to use between 25-30 keys every floor.