Power Lines is a tile laying game for PiecePack in which players take turns placing tiles from a communal pool. One player is attempting to create rows, columns, or diagonals in which there are a majority of matching suits, while the opposing player is doing the same except for matching values. When the 4x4 grid has been fully filled in, players score points for rows, columns, or 4-tile diagonals in which they have the largest matching set. Although originally designed for the PiecePack game system, Power Lines is playable with a standard deck of playing cards.