Pirate Seas - Level 1-4 is the third spin-off level of Level 1-1 of Pirate Seas in Plants vs. Zombies Online. In order to get all 3 stars, the player must produce 4000 sun or more and not lose any lawn mowers. When this level is finished for the first time, the player will get 4 Split Pea Puzzle Pieces.
- The player should see that there are two zombies walk in right on the first wave. The zombies are not crowded, but the waves skip very quickly. The player needs to quickly set up a proper defense.
- The strategy should be the same as the previous spin-offs. However, zombies come quicker, but the number of Plant Food is also increased, so wait until there are multiple zombies in a 3x3 area in front of Snapdragon then fire them all at once.
- The final wave is left without Plant Food with tons of zombies focusing on the two planks. During the previous waves, plant as many Snapdragons as you can, as well as using everything to block the zombies.
- Do not forget the objective if you want to earn the star.