Tetrolis

Tetrolis is a Tetris style game by VectorMan from 1993. Seven kinds of blocks drop into the pit, and you move and turn them to fill complete lines, which then disappear. When the blocks reach the top, it's game over. The author warns you: it's very addictive, so be prepared to spend long hours with it.

You can choose between three game types: a standard game, a challenge mode and a timed challenge. Two players can play at once on the same keyboard, or with two joysticks.