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Best CSM - Cities: Skylines Multiplayer Alternatives ranked by AI · updated Aug 2026

Cities: Skylines Multiplayer is a community mod that enables cooperative multiplayer in the original Cities: Skylines for players who own the base game. It synchronizes cities between players, but remains less polished and reliable than purpose-built multiplayer city builders.

Developer: Cities: Skylines Multiplayer Team Price: Free, requires Cities: Skylines ๐ŸŽฏ github.com/CitiesSkylinesMultiplayer/CSM

Top 6 CSM - Cities: Skylines Multiplayer alternatives

๐Ÿ’ก Pick it for polished co-op city building with deeper trade, production, and economic systems.

Anno 1800 is a city-building real-time strategy game set in the 19th century, offering players the chance to build and manage a...

Pros

  • Historically rich setting
  • Complex economy system

Cons

  • High initial cost
  • Steep learning curve for beginners

๐Ÿ’ก Choose it for accessible co-op city building mixed with politics, missions, and island management.

Tropico 6 is a construction and management simulation game that puts you in the role of a ruler on a fictional Caribbean...

Pros

  • Political strategy elements
  • Humorous and satirical tone

Cons

  • May not appeal to all city-building enthusiasts
  • Some repetitive gameplay mechanics

๐Ÿ’ก Pick it for free, dependable multiplayer and large transport networks rather than detailed modern city design.

OpenTTD is a business simulation game in which players try to earn money via transporting passengers and freight by road, rail, water,...

๐Ÿ’ก Choose it for stable co-op construction and management in a focused theme-park setting.

Build and manage your own theme park

Pros

  • Charming retro style
  • In-depth management mechanics

Cons

  • Paid game
  • Smaller community
5

Kingdoms Reborn

Earthshine

๐Ÿ’ก Pick it for a purpose-built multiplayer settlement game with survival, technology, and climate mechanics.

Kingdoms Reborn is a multiplayer city-building and survival strategy game for players developing settlements through changing climates and technology eras. It supports...

Pros

  • Designed around multiplayer rather than adapted through a mod
  • Supports cooperative and competitive settlement development
  • Adds survival, technology, and climate systems absent from Cities: Skylines

Cons

  • Less mature and less content-rich than Anno 1800 or Tropico 6
  • Settlement layouts are more constrained than Cities: Skylines
  • Survival mechanics may distract from relaxed urban planning

๐Ÿ’ก Choose it for built-in regional multiplayer and simpler city specialization, accepting smaller maps and fewer controls.

SimCity is a classic city-building simulation game that allows players to design, build, and manage their own virtual cities. It offers a...

Pros

  • Easy to learn and play
  • Iconic franchise

Cons

  • Limited depth compared to newer titles
  • Some technical issues in older versions

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