Nibbles, also known by the source code's file name NIBBLES.BAS, is a variant of the snake video game concept used to demonstrate the QBasic programming language.

Nibbles was written in QBasic by Rick Raddatz, who later went on to create small businesses such as Xiosoft and Bizpad.

[citation needed] The game's objective is to navigate a virtual snake through a walled space while consuming numbers (from 1 through 9) along the way.

After the last number has been eaten, the player progresses to the next level, with more complex obstacles and increased speed.

There is a multiplayer mode which allows a second player to control a second snake by using a different set of keys on the same keyboard.