The objective of Nibbles is quite simple. You control the worm and if the worm runs into a wall or runs into itself, you die. You get ten lives before your game is over. You win by either beating your own high score (or a friend's) or by completing all the levels. It is also possible to play against worms with artificial intelligence.
Nibbles also features multiplayer support with up to six competing human players in hotseat or network mode.