Tetris is a computer game evolved from the Russian developer Alexei Paschitnow. The first playable version was finished in June 1984. Then the game was available on an Elektronika-60 computer.
BloXX Duel is a popular puzzle game, in which two players play against one another. The players must rotate and manoeuvre falling blocks to form complete rows, which then disappear. The aim of the game is to clear 55 rows before your opponent. The game is played over a number of rounds. The first to win 3 rounds wins the game.