Tower of Babble is a party game in which players try to build 4 levels of a ziggurat. The game is played by drawing topic cards (such as "Russia", "DNA", "Shakespeare", or "Little Bighorn") and then talking about the subject for a specified amount of time. Players must speak in complete sentences, may not repeat themselves, and may not use words like "Um" or "Uh." The higher a players tower gets, the longer they must talk about the subject. If a player doesn't know anything about the subject they may make up their facts so long as they don't violate any of the other speaking rules.
The game includes a game board, tower pieces, and four sand timers in 30, 60, 90, and 120 increments. The first player to Babble through the 4th level is the winner.