We’ve brought your attention to many text adventures, but very few text role-playing games. And no, ascii RPGs don’t count.
Twilight Heroes is currently in beta, but very playable. In it, you roll a character who has recently become too fed up of the crime in his neighbourhood. You set out to become a vigilante crimefighter, silly costume and all.
What follows is a surprisingly in-depth and complex RPG, where you patrol various areas of the city, encounter enemies (these might be skateboarders, vogue rogues, or elderly women) and batter them with your weapon of choice. While on these patrols you may well stumble upon deeper issues; uncovering corruption and danger, helping the innocent, and pursuing the story’s various threads.
There are shops, bars, a casino with various means of gambling your in-game money, and even an auction house for offloading decent loot to other players. And it’s all to be explored within a certain number of turns a day.