[quote]Richard Bartle co-created MUD (Multi-User Dungeon), the text-based precursor to today’s MMORPGs, while studying at Essex University. He ended up formulating the theory that all MUD players could be broken down into four main types: killers, achievers, explorers, and socializers. This theory has since been used in all sorts of game design situations where it doesn’t apply – let’s look at what exactly it does tell us.[/quote]
I wrote this article for Gamedevtuts + to introduce this game design tool that has been known for more than 20 years and has been applied in many games, sometimes successfully, sometimes not, sometimes when it shouldn't have been applied.
Read the whole article on Gamedevtuts +.