I've been playing Cities: Skylines for almost 10 years. As soon as I started playing it, I recognized it as the definitive city-building game. It blew its contemporaries, such as SimCity (2013) and Cities XL out of the water. It was a smash success that developed a massive following and spawned 11 full expansions, 4 mini-expansions, 21 asset packs, numerous music packs, and thousands of player-created mods and custom assets.
Creating a sequel to a game that is so beloved and content-rich can be challenging or daunting. Sequels to extensively-expanded games, such as any given entry of The Sims, Civilization, Crusader Kings, World of Warcraft, Rock Band, and so forth, run the extreme risk of feeling bland, empty, and incomplete compared to their content-rich and/or mechanically-complex predecessors. This can leave the sequel feeling underwhelming to long-time audiences, who might return to the older game because they crave the extensive, familiar content. The Sims in particular is infamous for stripping out popular expansion content, and then selling that content back to consumers again (and again) as an expansion pack for the sequel. The most notable example is probably that every Sims game has a "Pets" expansion, because EA could never bite the bullet and just put dogs and cats in the vanilla launch of a sequel.
Sequels to expanded games often strip out popular content to re-sell as expansions.
The sequel to Cities: Skylines is a bit of a mixed bag in this regard. On the one hand, yeah, a lot of content from the original game is absent from the sequel, and the options for what players can build can feel a bit sparse. On the other hand, the vanilla release of Cities: Skylines II retains something from almost every one of the original game's expansions. It even includes content and mechanics that were part of some of the smaller content packs and from popular mods.
The vanilla game includes a day/night cycle that was introduced in the original's After Dark expansion. Some of the economic models of the After Dark and Industries expansions have been expanded in scope to apply to the entire game, thus alleviating some of the need for explicit tourism, leisure, or specialized industry districts. It took the winter themes of Snowfall and fleshed it out into a full seasonal cycle. It includes some of the weather and disaster events from Natural Disasters, as well as some of the early-warning and shelter infrastructure. It includes modular upgrades and customizations to certain buildings and infrastructure, as well as large industrial areas, that fills a similar role as the modular areas of Parklife, Industries, Campus, and Airports (though I'll talk more about this mechanic later in the review). It includes pedestrian roads from Plazas & Promenades. It includes eco-friendly variations of utilities that were part of the Green Cities expansion. And of course, it has road-building and transit-planning tools that largely leave Mass Transit in the dust.
It even includes sports parks and parking lots, which were late DLC content released for the original game in the last couple years. And the road-building and traffic-management tools have much of the functionality from the popular "Road Anarcy" and "Network Extension" mods. And that's to say nothing of all the brand new content, mechanics, and more complicated simulation! So even though it is not as full or content-rich as its predecessor with its double-digit expansions (how could it be?!), Cities: Skylines II is still a fully-featured and content-rich city-builder that can be played for many hours before going stale.
Some content and mechanics from almost every CS1 expansion are included in CS2's launch.
But as I said, there is quite a lot of content from the original game that did not make the cut, and which is sorely missed. For one thing, bicycles and bike lanes aren't in the game at launch, which is a kind of baffling decision (considering this game is developed in Scandinavia, where bicycling is huge). There also aren't any walls or fences or quays, and the tool for disabling zoning on either side of a road is strangely absent. So it's back to using pedestrian paths to remove zoning from arterial roads. Zoning is actually quite a bit of a pain in the ass in the sequel, and I am frequently fighting with the road layout, zoning squares, and pedestrian paths to try to get my city to look the way I want.
If you were particularly fond of leveling up and expanding things like industrial parks, nature preserves, amusement parks, universities, and so forth, then you might be disappointed by their absence. In fact, recreation, leisure, and tourism options are very spares in the sequel, as it lacks the tourism and leisure districts of the After Dark expansion. You also won't be building any small fishing villages, since Sunset Harbor is the one expansion that doesn't have anything being carried over into the sequel.
To its credit, the vanilla release of Cities: Skylines II feels more content rich and mechanically-compelling compared to the vanilla release of the original Cities: Skylines. But there's so much absent from the original game, that I un-install the original from my PC with a degree of trepidation.
There is some content from CS1 that is conspicuously absent.
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