These are complete collections of buildings, props, trees, and network assets which are, for the most part, "generic" enough to be used in builds with vastly different themes or locations.

I've organized them in a way which can provide a "core" library of assets, on top of which you could add your own collections of buildings/props/trees/roads/etc that might be more regional, themed, or build-specific.

This is the same approach (and same collections) which I've been using for asset management in Cities:Skylines over several years. I kept wanting to experiment with different regions, themes, and time periods in my cities, and I also found myself wanting to create new themed builds over time. Creating a "modular" system of collections was important in order to make that idea possible, and (somewhat) sane. Although asset management can be difficult for this game, I've tried to keep things as simple as possible, so you (and future me) can spend as little time as possible dealing with collections and Steam workshop and more time building :3

Note that these collections contain hundreds of assets individually, and the total number of loaded assets can range from several thousand to over 10,000, depending on the specific collections/assets subscribed. In my personal experience, this has a significant impact on loading times rather than in-game performance. Please use Skyve for improved load order/asset management features.

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If you download the five linked collections below (with yellow and black stripes), you will have a complete set of generic assets which will work for almost any region in the current day. You can simply press "subscribe all" in each collection (except for the trees collection, which has sub-collections for which you should subscribe only one)

Beyond this, you can start to add assets which are more region- or build-specific. I've created several collections of "themed" assets linked below, but of course you can create your own as well! Note that these collections only include assets which are not included in any of my common collections. If I plan to use an asset across all city types, I remove it from any of the region-specific collections and add it to my common collections.

• American City Collections
  
  • Mid-Century Retro
    -OR-
    
  • Midwestern (Core)
    -plus, optionally, one of-
    
  • Northeastern
    
  • Western
• European City Collections
  
  • City 17 / Eastern Europe (Half-Life 2)
    
  • UK
    
  • German
    
  • French
    
  • Nordics
• Japanese City Set
  
• Futuristic City Set (Cyberpunk)
  
• Island City Set (Tropico)

Some of my themed collections have linked collections for vehicle, network, and prop assets.
Additionally, the American and European collections have a common 'core' collection set and several "sub-regional" collections you can choose from. The general idea is to include assets from the 'core' region collections in addition to one sub-regional. See the description on each individual collection page above, if that's unclear!