The Bartle Test of Gamer Psychology is a way of organizing MMO players into 4 different categories: Killers, Achievers, Socializers, and Explorers. MMO designers still use this system today because knowing what types of players prefer your game makes it easier to market your game. I recommend the Extra Credits YouTube episode for more details on understanding how this all works.
Now a while back, we did a blog post on our own categorizing: Sticks and Stones, Rubber and Glue. In that post, we classified RPG player characters into 4 different categories: Sticks, Stones, Rubber, and Glue. The purpose of that article was not only to address differences in player characters but also to point out that a good RPG group needs all four of these player types.
Today we are going to take a step back and look at RPG PCs from a GM’s point of view. Like MMO designers with the Bartle Quotient, a GM that knows her players’ styles and preferences can better design adventures and campaigns to let players thrive or target new players for recruiting. But GMs also often have to be bards, doing a little bit of everything through storytelling and performance to make it seem more real.