District styles are collections of zoned buildings (residential, commercial, etc.) that can be used to specify what exactly should spawn in each district of the city. Styles can be created and managed from a tab in the content manager. The arrow button can be used to show or hide the assets belonging to a style. The assets can also be removed individually from the expanded view. The game contains both its default style which is largely American in content and an optional European Style. Enabling it from the content manager allows the zoned wall-to-wall buildings from the European theme to be used in the other themes by setting districts to use the European style. Like all styles, it is by default disabled, since enabling it will increase memory consumption and cause longer loading times.
Enabled styles will load and spawn the custom buildings they contain even if the assets are disabled from the content manager. This allows the player to control whether a custom building should appear also outside districts and districts using the default style, or only in districts using a certain style. In game, styles are activated from the district info panel.
The European style is a part of the base game, and there are official DLCs as well.
The European Suburbia DLC is a Content Creator Pack that contains low-density residential buildings.
The Modern City Center DLC is a Content Creator Pack that contains high-density commercial buildings.
Styles can also be shared in Steam Workshop. Subscribers can click the "subscribe to all" button of the style to easily download the required assets, so it is not necessary to specify required assets for a style in the Workshop. Editing a Workshop style in the content manager will create a local copy of the style. Buildings are added to existing styles from the assets tab. Only zoned buildings from the Steam Workshop can be added to a style. Selecting the default style for a district means the district can spawn the usual buildings from the stock game and any of the enabled custom buildings. Selecting a custom style will only replace buildings from those combinations of zoning type and level of which they have at least one building (for example, level 2 low density residential zone, or level 3 office zone). All other combinations will still use default buildings.
It is possible to check which combinations are replaced by holding the mouse over the information icon in the style. This functionality requires all the included assets to be created or updated with the version of the game that includes styles (or newer); otherwise only a message about legacy assets is shown.
An important part of creating a properly functioning style is to include buildings of certain size footprints for each zoning type/level combination. To allow zone blocks of any shape to be filled requires buildings of at least sizes 1x1, 2x2, and 3x2. If any of these is missing, parts of a zone block may never have buildings spawn in them. Other sizes, such as 4x4, will add to the variety, but are not absolutely necessary. It is useful to keep in mind that the game automatically creates versions of the buildings that expand the depth dimension of the building up to 4 (so a 1x1 building can also spawn as 1x2, 1x3, and 1x4).
Another factor to take into account is that buildings in the game can only upgrade to another building of the exact same size on the next level. If no such building is available, the building will stay on its current level. For example, adding a low residential level 1 building of size 2x1 and only having a 2x2 on level 2 will not allow the 2x1 to upgrade. On the other hand, this could be used intentionally to create a "slum" style, where no building can upgrade beyond level 1.
Using the content manager to select a style
|Styles in the content manager||Adding assets to a style in the content manager||Selecting a styles for a district||Selecting a styles for a district|