Cleaning Stamps is the daily login bonus feature of Dandy Dungeon. From the update in October 2017, several Dandy Collection Sets exclusive to this event can be reacquired from the Rare Item Shop at the cost of Happy Clovers.
Sequence[]
When this event is triggered, Yamada would turn around and make a short announcement.
Yamada: ...Aw heck. I guess I let my room fill up with garbage. It's time to take out the trash... ...literally!
This is followed with the accumulated trash getting cleared systematically. After each day's worth of trash is cleared, a small RNG takes places to reward the player with a random gift.
After this, a calendar comes out to record a cleaning stamp entry. This event is concluded with another short dialogue.
Yamada: Dear Departed Garbage: Rest in piece. Goodbye.
(Yamada hops back to his computer)
Yamada: Well! Back to work~!!
Trash Build Up[]
As the day goes by, trash is accumulated in Yamada's Room. This is cleared every 24 hours when the player logs in and accesses Yamada's Room. Trash is not cleared if the player does not log in, or remains in a dungeon.
The maximum build up of trash is three days' worth. This means that the player can log in once every three days at the very least to enjoy the daily bonus. From the fourth day and beyond, logging in will only give the player up to three days worth of stamps.
Random Gift[]
Stamp Rewards[]
Stamp rewards follow a table which can be assessed under the Cleaning Stamps option in Yamada's Mind. Examples of these can be seen in the gallery.