On a regular basis the question pops on reddit or forums related to Cities: Skylines "What's the must have mods atm", but there's no quick good answer to that, as it all depends on what you're looking for in the game and to some extend what your computer can handle. So I figured I'd create a few collections to make it easier for new players or old returning players to find the type of mods they're after.

They're a work in progress, so feedback will be helpful. Perhaps the categories are too broad or perhaps I'm missing some completely. My goal is to keep these collections up to date too, but as I don't run with all these mods (there's at least a few I don't use :P), reports of broken mods (or fixed ones which aren't on the lists yet) will be helpful. :)

• The Basics - Mods which should IMO be integrated into the game and have a low impact on performance
  
• Detailing - Mods allowing you to customize and add detail to areas of your city
  
• Simulation - Mods adding to or expanding on the simulation aspect of the game
  
• Transport - Mods adding to or expanding on transport networks
  
• Utility - Very useful mods, which don't fit in the other categories
  
• Visual - Mods which improve or change the visuals of the game on a global scale