A sophisticated, lazy (as you don’t even have to move it) version of a dice cup – that’s the way I would define the dice tower. Going by the wiki definition though “it’s an object used by players to throw dice fairly. The dice fall from the top of the tower and bounce off various platforms inside, until they reappear in front. The purpose of the tower is to eliminate some forms of cheating used when throwing dice by hand. There are many forms of towers differing in assembly and construction”.