My favourite drinking game is: The Bridge Too Far.
The aim of this game is to get from point A to point B. You have to have minimum a pint of beer, and a pitcher of whiskey-tea.
First a dealer sets out four cards, then pour in a shot the whiskey-tea, then he sets out four cards. The first card is open. You have to guess, the next card is higher or lower. Until the fourth card, if your guess is correct, then you can go on, without drinking. If you can't guess correctly, you have to drink beer, two fingers, and the dealer changes the card in the row. Warning: No prize for two same in one row, dealer changes both cards, and the first ace's value depends on the dealer, when it apperas in the row (the ace stays on that value). If you guess the fifth card correctly, you 've crossed the bridge, and you have to drink up the shot, wich has to be refilled by the dealer, because, if you can't guess correctly 6th, 7th, 8th card, you go back to the fourth, drink up the shot, whis is going to be refilled (crossed the bridge), and you can try again. If someone quits before correctly guessing the 8th card, pays a round to everyone in the bar.
This game I've learned from Australian Military Officers (Combat Engineers). They are crazy, aren't they.
Try this game. It's FUN square.