This is a simple game of Endless Tower.
The Endless Tower is an increasingly difficult set of challenges. Participating parties make their way up the 100-floor tower, with a special boss encounter against Entweihen Knothen on the 100th floor, and Naght Sieger afterward. These battles function similar to the Izlude Arena, with players being required to defeat all monsters on a particular floor before the door to the next can open. Once on a floor, players are unable to go backward; thus the only ways to leave the tower are to die and respawn, leave the Party, log out, use a Butterfly Wing, or walk into a Warp Portal.
How To Play:
Just try to tap the screen to add a stack to its original size. If you fail, it cuts edges and makes smaller size which is difficult to play. So, Build your tower as much as higher you can.
Enjoy Playing this game. Thank You.