User blog comment:Fairy27/Suggestion about the order of unlocking worlds/@comment-26945790-20151224113728

I think you should unlock the worlds in this order:

1. AE

2. Pirate Seas because you'll need Snapdragon and Cherry Bomb there.

3. Far Future because you will get tons of useful plants there, especially Blover.

4. Wild West because you will get the most powerful plant in the game, Winter Melon.

5. Lost City because this is easy.

6. Dark Ages. Now it is starting to get tuff. You will need the mushrooms, especially Sun-shroom and Fume-shroom.

7. Frostbite Caves. Although it's easier than Dark Ages, but you should have the Sun-shroom and Fume-shroom.

8. Neon Mixtape Tour. Not very useful plants here (except the Phat Beet in my opnion) but it's easier than the next worlds down here.

9. Jurassic Marsh. Very useful plants, but you will usually get screwed up by loads of zombies and dinos.

10. Two world exclusives, the other three are UP (again, in my opnion), the zombies hordes are OP.

11. (SPOILER AHEAD) Modern Day, the last world of PvZ2. Enough said.