マストフォローの建塔士 (Masuto Forō no Kentōshi)

In マストフォローの建塔士, roughly "Must Follow Tower Builders", the players are erecting a tower through trick-taking.

Each card in the deck shows a specific 3D wooden piece. At the end of each trick, the players which followed suit will place the piece shown on their card onto a central tower. Points are gained for building higher, any parts of a piece which overhang the edge of the tower, and the person to win the trick. Points are lost if a player causes part of the tower to collapse.

The game ends when a player has 0 or fewer points or the hand is complete. The person with the most points wins.