Map editor The map editor allows players to create custom maps using a variety of tools for landscaping. By adding mods to a save, the save file will no longer be allowed to collect achievements, even when the mods are disabled afterward.Ĭontent mods can be created through three different types of content editors: map editor, asset editor, and theme editor. Mods will disable achievements, including saves that were not started with mods. While mods are fully supported in Cities: Skylines, mods are prone to break easily after every update, requiring the creator of the mod to update the mod to the latest version if broken. Mods can be 'installed' through the Steam Workshop by simply adding a mod to the user's favorites. In Cities: Skylines, mods are fully supported and can be accessed in the content menu. A mod is a modification of the content of a video game in terms of gameplay or simply aesthetics, such as graphical improvements, alterations, additions, and more.