What is "multiverser"

Multiverser is a tabletop multi-genre role-playing game, published by Valdron Inc., in which the player character is typically an alternate version of the player himself. The player character travels to a new dimension every time he or she dies. Each dimension is governed by rules called 'biases' which determine what actions are possible or not possible in any given dimension. The dimensions, more commonly called 'worlds', may feature any setting and plot the referee can think up from swords-and-sorcery to sci-fi.