vetetris is a game written in Java. It's similar to tetris, but it is played in 3D. There are figures which are falling that have to be placed in the right manner. You can rotate the blocks in six different directions and move them in five directions. As time goes on they move faster and faster, and it gets harder to put them in the right spot.
Xpuyopuyo is a Tetris-like game in which the object is to match four or more blocks of the same color. Multiple matches are worth more points, and result in rocks being dumped on the opponent. It supports human-human, human-AI, AI-AI, or network game play, and a number of gameplay options including themes and music. The game also features AIs that can learn to play strategically.