Plants vs. Zombies started as a fairly simple lane-based tower defense game, much loved thanks to its tight gameplay and whimsical style. But like any casual game that gets a big following, it's now branching into other genres as well. The Garden Warfare spinoffs on consoles have done well as Team Fortress-style multiplayer shooters, and now PopCap is going after another multiplayer giant: Hearthstone. PvZ Heroes, now out of geo-limited beta, brings semi-random card decks into the eternal undead-rhododendron fight.

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