This is really reminiscent of Caillois's game theory. These 4 kind of gamers have strong mappings to the 4 types of games as well. There is a sort of 16 types o

This is really reminiscent of Caillois's game theory. These 4 kind of gamers have strong mappings to the 4 types of games as well. There is a sort of 16 types of gaming if you look at it this way (probably less because of all the overlap), all ranging on some level of free play and strict rules.