Role-playing games are different from any other type of analog game because of their relationship with rules and procedures. When you sit down to play a board game, or a card game, or even a game of darts, you follow a set procedure to determine an outcome. Wargames took half the steps away from board games by introducing rulesets which could be adapted to a wide range of scenarios, the only limits being how many minis you had and how big your sand table was. The early ‘Braunstein’ campaigns started the other half, walking away from simple win/lose conditions in scenarios. For the role-playing game to turn from a weirdo version of wargaming a couple nerds were running to a repeatable, salable product, existing wargaming rules had to be supplemented with rules for writing and executing free-form scenarios which very much didn’t resemble battles any more. Every traditional role-playing game, from the first edition of Dungeons and Dragons onward, has rules for players and rules for the person running the game.