Play-by-post role-playing game

An example of a play-by-post roleplaying game

A play-by-post role-playing game (or sim) is an online text-based role-playing game in which players interact with each other and a predefined environment via text. It is a subset of the online role-playing community which caters to both gamers and creative writers. Play-by-post games may be based on other role-playing games, non-game fiction including books, television and movies, or original settings. This activity is closely related to both interactive fiction and collaborative writing. Compared to other roleplaying game formats, this type tends to have the loosest rulesets.