Steam Ages (蒸汽时代, pinyin: Zhēngqì Shídài) is the 14th world in the Chinese version of Plants vs. Zombies 2 and third Chinese-exclusive one. It was released for iOS on July 31st, 2018 and added in the 2.3.0 update.
The main gimmick of this world are sewers. Steam sewers will first appear on the lawn with a cover, but after some time, a massive amount of toxic steam will blow and blast the cover. It will stay on the lawn, making your plants in a 3x3 area around it take damage continuously. Lotus Root can be planted to absorb the toxic steam. Transportation sewers can transport zombies, similar to Tunnels, but are slower and are able to transport zombies to different lanes.
This world seems to take place towards the end of the 19th century in London, England, where there are factories around the city that repair and assemble machines, as well as trains and generators. It may also possibly take place during the time of the Industrial Revolution or near World War I where weapons seem to be more advanced due to the evolution of engineering. Like Lost City, it may have taken place during the Victorian Era due to the latter’s setting (e.g. the Tower Bridge crossing the River Thames in the lawn’s background) and both worlds containing British-looking zombies. It likely takes place between 1894 (the year the Tower Bridge finished construction) and 1901 (The end of the Victorian Era), although Lost City likely takes place after this world due to the invention of planes and airships.
The streets during the Industrial Revolution were filled with smog and zombies were waiting for their chance to come. Utilize the terrain with sewers to destroy the zombies' evil plan, are you ready for it?
In Chinese: 工业革命时期的街道充斥着烟雾，僵尸们正准备伺机而动。利用下水道地形挫败僵尸们的阴谋，你准备好了吗？
|4||Choice||Two||Steam Ages lawn mowers|
|5||Two||Special Delivery level|
|Two||Special Delivery level|
|Two||Power Tiles present|
|11||Two||Locked and Loaded level|
|12||Two||Special Delivery level|
|13||Easy mode: Reach 2000 points
Hard mode: Reach 4200 points
|14||Choice with||Two||Objective: Produce at least 2500 sun|
|15||Choice excluding most free plants and sun-producing plants||One||Last Stand level|
|17||Two||Special Delivery level|
|21||Choice excluding most free plants and sun-producing plants||Two||Last Stand level|
*First time reward other than stars, coins and chests.
- The developers stated that it was supposed to have 24 normal levels like most of the other worlds, but some of those levels do not show up due to a coding error.
- A sign on one of the house's fences in the lawn art reads, "DAVE," implying that it is Crazy Dave's house, and not the player's.
- A boss battle for Steam Ages has yet to be released, but it is shown that it'll be a Zombot piloted by Dr. Zomboss.
- The world preview writes Steam Age instead of Steam Ages. This also happens with Dark Ages which was written as Dark Age. It is unknown why.