Hybrid (stylized HYBRID) is a role playing game created by "C". The "game" is said to correctly model physical reality, and originated from a series of "disjointed" posts by the author on a Usenet board. Hybrid consists of over 500 different and non-sequential rules, many of them utilizing references to pop culture and politics, cross-references to other rules (existent or not) and even other completely different RPG's, equations with undefined variables, and other random content. The version numbering system is also non-sequential, version 0.21 is considered newer than 0.34. An RPGnet reviewer declared Hybrid to be "unmitigated nonsense", and the game is also ranked as the 2nd worst RPG on the site.