Cities Skylines Multiplayer — Is There Co-op or Multiplayer?

Is Cities Skylines multiplayer? No official multiplayer in CS1 or CS2 — here's the honest answer, the mod-based workarounds, and why a city-builder co-op doesn't officially exist.

Last Updated: August 11, 2026

Cities Skylines Multiplayer — Is There Co-op or Multiplayer?

The short version: No. Cities Skylines has no official multiplayer or co-op in CS1 or CS2 — both are single-player city-builders. There's no official co-op mod either (the sim doesn't support it). CS2 has hinted at multiplayer features but nothing shipped as of 2026. The workaround: share screens, or take turns on the same save.

This guide gives you the honest answer.

The Direct Answer

  • No official multiplayer in CS1 or CS2 — both are single-player games.
  • No co-op — you can't build a city together in real time.
  • No online/PvP — nothing.
  • CS2's multiplayer plans: Paradox has mentioned multiplayer concepts for the series, but no playable multiplayer has shipped in CS2 as of 2026.
Why there's no multiplayer

A city-builder's core interaction is pausing and tweaking one city — real-time co-op would require building on the same save, which the sim engine (and the design) don't support. It's a solo genre by nature.

The Workarounds (What People Actually Do)

Cities Skylines co-op
Cities Skylines co-op

  • Screenshare co-op: Friends play "together" via Discord/screenshare — one builds, both decide. The classic city-builder co-op workaround, and it works well for CS.
  • Shared saves: Take turns on the same save file (email/Dropbox a save, or use cloud saves) — "asynchronous co-op."
  • The "multiplayer" mods: Search results claiming CS multiplayer mods are either joke mods or UI tools — no functional multiplayer mod exists for the sim.
Don't trust "CS multiplayer mod" claims

The Cities Skylines sim doesn't support networking — functional multiplayer mods don't exist. "City skylines multiplayer" searches land on this page because the answer is genuinely "no."

CS2's Future

  • Paradox has talked about multiplayer for the franchise's future (interviews/roadmap mentions).
  • Reality check: As of 2026, CS2 has no multiplayer — treat any "CS2 multiplayer" claim as unshipped/rumor until Paradox ships it.

Frequently Asked Questions

Is Cities Skylines multiplayer?

No — CS1 and CS2 are both single-player city-builders with no official multiplayer or co-op.

Can I play Cities Skylines with a friend?

Not natively — the workaround is screenshare co-op or shared saves (take turns).

Is there a Cities Skylines co-op mod?

No functional co-op mod exists — the sim doesn't support networking.

Will Cities Skylines 2 have multiplayer?

Paradox has mentioned multiplayer concepts for the franchise, but nothing has shipped in CS2 as of 2026.

Can two people build the same city?

Only via shared saves (turn-based) or screenshare — not real-time co-op.

Why is Cities Skylines single-player?

The city-builder genre is pause-and-tweak by design; real-time co-op would break the sim's core loop.