This is fantastic! The complete roads/traffic and transport get a complete overhaul with unique additions like blimps!

A great approach for a better (digital) world! Offers great anti pollutions plans

This is a highly debated DLC for its flavour. It doesnt add seasons as one might expect. Not essential persé but offers a new kind of map/enviroment

Cities skylines offers a great workshop on steam for a myriad of options. Not sure why these were paid additions but none the less a good dlc!

A lovely dlc that focuses or European architecture

Althought a bit pricey, its great at a discount. Its add a festivalflair/concert in the park with licensed music from artists (I didnt know them, but atleast one was at a PDX con)

its fun if you like it but not essential

So this DLC introduces China as an off-map entity which you can ally with or war with. Being in the good graces of the Emperor grants you bonuses you can request, such as wives, scholars, generals, artifacts, etc. It also introduces the ability to write books, which function as artifacts to give your characters a boost. There are new Casus Bellis as well, giving you more ways to go to war.

Most fun DLC to date. The Mexican focus tree alone is worthy enough.
Pros: Mexican focus tree, in any way you want to play it (ultracatholic/fascist or Trotsky leading the true revolution). I've had my most fun games to date playing it.
Cons: Great ships take ages to be built. The module system, though, is fun

Unexpected Journey has a lot of varied hidden object scenes. This variety gives it more of an original feel from other HOG. I especially liked trying to find the star constellations.

Other reviews have correctly stated that the biggest changes to the game were included in the free update that dropped alongside this expansion. However, I feel that all the added elements in Megacorp are a lot of fun and well worth the price of admission. And as always, I absolutely love the additional music tracks.