Pipe Work is a simultaneous-play, tile placement game with the tiles actually being pipes that connect colored tokens on your 5x5 playing area.
In each of the eight rounds, players start by revealing a card that shows where the pairs of colored tokens are placed on their individual 5x5 game board. As soon as everyone's done this, all players race simultaneously to place pipes in their game board to create connections between matching tokens. Players grab numbered spanner cards in the order that they finish, and whoever grabs the "1" spanner gets first choice of a scoring card. Incorrect tile layouts net someone the "4" spanner.
After eight rounds, whoever has the most medals wins!