One of the questions I get asked about when people see my User Types, “What about Killers?” Now I have spoken about the Bartle Killer type and why I don’t really account for them in the types. In a nutshell, Killers want to destroy and humiliate other players in MMO’s. This is not a behaviour we are trying to build for in gamificaiton and as my User Types are written to help give ideas and structure for designing systems – they didn’t really have a place. This is especially in enterprise gamificaiton where this type would be handled with internal policy!