Star Realms is a strategy game built around combining deckbuilding with the direct clashes of a trading card game. Its space-combat premise gives those card choices a clear purpose: shape a deck that can stand up to an opponent. The game was designed by Magic: The Gathering Hall of Famers Darwin Kastle and Rob Dougherty, bringing its card-game and deckbuilding roots together.
Play options range from battles against AI to a six-mission campaign in the free version. The base set adds three AI difficulty settings and nine more campaign missions, alongside Pass and Play battles and online challenges against friends. Online play also supports opponents across operating systems, giving multiplayer a broader reach than local turns alone. The store description notes that the base set is required for online play.
Its appeal lies in applying deckbuilding decisions to competitive space combat, whether a player is learning through the tutorial or facing another person. The game is available on Windows through Steam, with versions also listed for iOS, Android and the Mac App Store.