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How to write rules for your own rpg
Choose the kind of rpg you'll be making.
There are many different varieties of rpg you might decide to create. Common versions include tabletop, live action role-playing (larp), and pen-and-paper.
You'll need to decide which of these you plan on making before you go any farther on your rpg making journey. Tabletop rpgs often involve a game leader, frequently called a dungeon master or dm, who draws maps that are used on a tabletop along with descriptions to create the setting for the game.