Double or Nothing, released on September 25, 2002, is possibly Neopets' simplest game. It is a HTML game of coin flipping. Flip the coin for Double or Nothing. Play against Snargan the Castle Treasurer, a Skeith. If it's heads you get double; if it's tails, your lose. This is a game of luck/chance.
- An avatar can be won from this game ever since September 26, 2005. It is obtained by collecting winnings of at least 320 Neopoints.