Life in the Kingdom
As far as turn-based games online go, there is none finer than The Kingdom of Loathing. Where else can you become a Disco Bandit, fighting things like Baseball Bats (a creature with bat wings and a baseball for a body) and P Imps (in the Copse of the Deep Fat Friars)? My current questing takes me into the Palindrome, where every creature is (you guessed it) spelled the same forwards as it is backwards. The only problem now is that when I run out of adventures I am very very sad. So, I do the sensible thing and get my character falling down drunk.