Gamezebo says "Taking the best from two different genres, Aqueduct’s goal is basic: to connect a valve to a drain. Obviously, the goal is derived from the many pipe-making puzzle games we’ve played over the years. In order to finish a stage, the pipe must be fully-enclosed with no open ends. Sometimes with a t-shaped junction there may be a pipe that leads to a dead end, but that can be closed with a round-ended piece. Otherwise, it’s all about going with the flow."