Archibald's TriTris is a clone of world-famous Tetris, based on lining up tiles of the same colour. Amusing and easy-to-play choice for everyone who wants to try something new. Non-violent arcade game for kids, adults, home or office. You are to line up 3 or more tiles of the same colour horizontally, vertically or diagonally. Triplets of the same colour are erased, freeing space for the next block falling down.