Pipe Mania is a puzzle game developed in 1989 by The Assembly Line for the Amiga. It was ported to several other platforms by Lucasfilm Games, who gave it the name Pipe Dream and acted as general distributors for the US. In this game, the player must connect randomly appearing pieces of pipe on a grid to a given length within a limited time.
The Windows version of the game was included in the MS Windows Entertainment Pack. In 1990, it was released as an arcade game by Japanese manufacturer Video System Co. Ltd., though with slightly altered gameplay, giving the player the task to connect a source and drain with the random pipe pieces.
Using a variety of pipe pieces presented randomly in a queue, the player must construct a path from the start piece for the onrushing sewer slime, or flooz (the 1991 Windows versions help files refer to it as goo), which begins flowing after a time delay from the start of the round. The player can keep clicking the same square to change the pipe pieces. The flooz is required to pass through a given number of pipe pieces in order for the player to pass to the next round. Some rounds also include an end piece, which must be the end of the pipeline the player has constructed, in addition to fulfilling the minimum pipe length requirement.
Completing the sewer pipeline in the time allotted allows the player to advance to the next level, which means a shorter interval from the start of the round until the flooz starts flowing, as well as faster-flowing flooz. On higher levels, some special pipe pieces appear in the game, such as reservoirs, one-way sections, and bonus sections. Obstacles and wrap-around sections also appear on the game board on higher levels.
If a player is able to finish the level using five cross-section pieces and filling them both ways, 5,000 bonus points are awarded.