Snake is a video game that came out in the late 1970s and has maintained popularity since then, becoming somewhat of a classic. The player controls a long, thin creature, resembling a snake, which roams around on a bordered plane, picking up food (or some other item), trying to avoid hitting its own tail or the "walls" that surround the playing area.

Each time the snake eats a piece of food, its tail grows longer, making the game increasingly difficult. The user controls the direction of the snake's head (up, down, left, or right), and the snake's body follows. The player cannot stop the snake from moving while the game is in progress.

The Snake variety of games originated with the arcade game Blockade, released by Gremlin in 1976. The first known microcomputer version of Snake, titled 'Worm', was programmed in 1978 by P. Trefonas (USA) on the TRS-80 computer, and published by CLOAD magazine the same year.