SITris

SITris is a single-player, shareware, falling block game. This game is essentially a Tetris clone with virtually identical gameplay and some additional features. In this game the player can:

• redefine the action keys;
• choose whether the next piece is displayed;
• choose between regular, small, large, wide or skinny blocks;
• start at any of the ten levels of difficulty;
• select from five different heights at which the blocks are released;
• use three different block sets or a use a combination of all of them;
• enable the SITris amoeba, an invisible creature that eats random blocks creating holes;
• enable a block creation function that causes blocks to spontaneously appear.

The game has a single high score table that serves all modes of play and is entirely keyboard-controlled.