Four in a Row

Pick a column and your disc falls to the lowest free space. First to line up four in any direction takes the round.

Both players choose their own colour and name from a named catalogue, and either can recolour the board. The page washes toward whoever is playing, so whose turn it is never has to be read.

Board sizes from small to large, sound synthesised as it plays rather than shipped as files, and everything you set is remembered between rounds.