Greater Than Games released an expansion,
Sentinels of the Multiverse: Rook City in the spring of 2012. The expansion added 2 heroes, 4 villains and 2 environments to the base game. The villains in Rook City also include an
H icon in some cards, which represents the number of heroes in the game, as a way to improve difficulty scaling. The cards used in Rook City are also of a better and thicker cardstock as compared to the original base game. In the autumn of 2012
Greater Than Games released their second expansion,
Sentinels of the Multiverse: Infernal Relics. Similar to
Rook City, this expansion added an additional 2 heroes, 4 villains and 2 environments to the game. This expansion also introduced the concept of a super villain group, containing multiple villain characters in a single deck. At the same time as Infernal Relics,
Greater Than Games also released a new edition of the base game,
Sentinels of the Multiverse: Enhanced Edition. This edition of the game has minor changes to some of the cards, added tokens to help keep track of damage and modifiers, and added the
H icon to the base game's villains to improve their scalability. In spring of 2013,
Greater Than Games released the third Expansion,
Sentinels of the Multiverse: Shattered Timelines. Similar to
Rook City and
Infernal Relics, this expansion added 2 heroes, 4 villains, and 2 environments to the game. The
Shattered Timelines expansion featured the winning fan-created villain from the Create a Villain Contest run by
Greater Than Games in September 2012. The expansion was supported by a Kickstarter campaign that ended successfully on November 29, 2012, having raised $185,200. This expansion added 5 heroes, 5 villains, and 2 environments. The new villains have smaller decks than previous villains, as they're designed to be played in a new game mode as a party against the heroes.
Vengeance is available as of February 2014. During this time
Greater Than Games also released the box set
Rook City & Infernal Relics, discontinuing the production of separate boxes for
Rook City and
Infernal Relics. The
Vengeance box included an advertisement for an upcoming expansion,
Wrath of the Cosmos, later released in January 2015. This expansion included 2 heroes, 4 villains and 2 environments. The preorder campaign was largely successful and added 1 more hero, 1 villain, and 1 environment along with 6 hero promos. The
Villains of the Multiverse Expansion, released in December 2015, reintroduces some old villains as well as some new ones, using the Vengeance combat mechanic of having one villain per hero character. This expansion includes ten new villain decks with over-sized villain character cards and four new environment decks. The preorder campaign also allowed the release of 1 promo villain and 1 promo environment, as well as 7 promo hero character cards. On October 16, 2014, an
iOS/
Android version was released followed on December 22, 2014 with a Steam release for the PC. On January 29, 2016, Greater Than Games announced the title of the next expansion, "OblivAeon". They stated that this would be the final expansion for Sentinels of the Multiverse. That Kickstarter ended on March 11, 2016 with 9,982 backers raising $1,518,321. The OblivAeon expansion was released in 2018. ==Video game adaptation==