Two players (or player vs CPU) take turns, dropping one piece of their colour into a desired column. The first one to achieve a horizontal, vertical or diagonal row of four wins.
"The classic and popular two-player connecting game! Be the first to connect four pieces of your colour in a vertically suspended grid. Set the difficulty level and play against the CPU or against a friend by taking turns and dropping your colourful pieces into the grid, trying to outsmart your opponent!"