This is a unique case. Maps mods here are often larger than the base game . Mods like Promods add Iceland, the Faroe Islands, and detailed cities that SCS Software hasn't officially released yet.
Grand Strategy and Simulation (e.g., Cities: Skylines, Hearts of Iron) maps mods
Maps mods, short for "map modifications," refer to changes made to a game's map or level design. These modifications can range from simple tweaks to complete overhauls of the game's geography. Maps mods can add new areas to explore, modify existing environments, or even create entirely new game modes. The possibilities are endless, and the impact on gameplay can be significant. This is a unique case