Tactic is a falling block puzzle as popularised by the gameTetris. Unlike that game, all of the blocks are the same size but are a number of different colours. The aim of the game is to drop the blocks so that blocks of the same colour form set patterns. The patterns required to complete the level are shown at the bottom of the screen. If a required pattern is formed, those blocks disappearcausing any blocks resting above to fall. The iOS version adds bombs.