KARDS' Theaters of War expansion is pricey, but a great example of solo content for digital PVP card games

This summer has been a weirdly good time for abstract World War II card games. Early this month saw the release of the much-lauded deck builder Undaunted: North Africa as well as the announcement of the first expansion set for the series Undaunted: Reinforcements. The end of June also saw the release of Theaters of War, a set of single-player campaigns for KARDS - The WWII Card Game.

For the uninitiated, KARDS is a World War II-themed, free-to-play, digital card game from the relatively new indie development studio 1939 Games. It both looks and plays very much like Blizzard's smash-hit Hearthstone, albeit with a 1940s skin. Players have a steadily increasing currency to play cards onto the three-rowed battlefield, fighting for control of the middle row (the "front line") in order to attack and ultimately destroy the opposing player's HQ.

Despite these superficial similarities to Hearthstone, KARDS stands on its own as a well-constructed, fast-paced, almost painfully addicting card game based around a simple premise.

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