Niggle (also known as "Oh Hell") is an easy to learn card game where you must guess how many tricks you are going to win each round. The fun comes from trying to get exactly the number of wins you guessed while stopping your opponents from achieving their target. The AI plays a mean game and also shows you how confident or worried the computer players are that they will make their bids. You can play locally, or over the internet against other Windows users, and against iPhone and Android devices too!