Zynga and Hasbro revealed today another installment in their alliance that combines toys and social games.

Today, the companies announced that Hasbro is working on a CityVille Invasion line of Kre-O toys and that Zynga has launched its Kre-O CityVille Invasion app.

Kre-O is Hasbro’s block-building brand that competes with Lego. In the app, Dr. Mayhem and his evil henchmen have invaded. It’s up to players and their heroic Kreon figures to defend their cities against destruction. Hasbro’s Kre-O CityVille Invasion sets bring the game to life, enabling builders to construct one of of several CityVille Invasion locations, like haunted houses, skyscrapers, marinas, and police stations.

The combination is another in a series of toy-game hybrids that have become popular. Those include Activision Blizzard’s Skylanders franchise and Disney’s upcoming Disney Infinity. The Zynga-Hasbro toys will arrive on store shelves on Aug. 1.

Last fall, Hasbro launched a series of Zynga-themed board games such as Draw Something, CityVille Monopoly, and The Hungry Hungry Herd.