For the most part expansion sets alternated release between Marvel-based sets and DC Comics based sets with new sets every three to six months. System are based on the superheroic settings of Marvel and DC Comics, with the exception of a smaller set called the Hellboy Essential Collection. System at the 2015 Gen Con Indianapolis in its updated 2PCG format, switching from the traditional, partially-randomized card distribution model of most CCGs to a non-random, fixed-distribution model. UDE announced at the 2014 Gen Con Indianapolis that they would be letting convention-goers playtest a subset of Marvel Origins reprinted as 'Vs. The game was discontinued by Upper Deck Entertainment in January 2009. It was first published in 2004 and is set in the superhero genre.

System cards in an attempt to win a game against their opponent. In the game, players build and play a deck of Vs. System (short for Versus System), also written as VS System and abbreviated as VS, is a collectible card game designed by Upper Deck Entertainment (UDE). Matt Hyra, Mike Hummel, Edward Fear, Danny Mandel

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