Plants VS. Zombies 3: Battles Through History

Plants VS. Zombies 3: Battles Through History is a game available on mobile devices only.(Android and IOS)

Easy, Medium, and It's Getting Harder Worlds
During the intro, the player discovers the Undead Sea Scrolls, which take them to the first world of the game.

The Greek Islands are the first world of the game, unlocked after the Undead Sea Scrolls are found in the intro.

Ancient Pompeii is the second world, unlocked after the Key of Fire is found after completion of Greek Islands-Level 35.

The Opera Ages is the third world, unlocked after the Key of Music is found after completion of Ancient Pompeii-Level 35.

Candlemaking Days is the fourth world, unlocked after the Key of Candles is found after completion of The Opera Ages-Level 30.

Mid-evil Times is the fifth world, unlocked after the Key of Knights is found after completion of Candlemaking Days-Level 30.

Hard, Extremely Difficult, and Impossible Worlds
Black-and-White Days of Old is the sixth world, unlocked after the Key of Colorless is found after completion of Mid-evil Times-Level 35.

60's London is the seventh world, unlocked after the Key of Cities is found after completion of Black-and-White Days Of Old-Level 40.