What are the desktop system requirements for Cities Skylines (v1.21.1-f9)?

Cities Skylines (v1.21.1-f9) requires a 64-bit desktop operating system (Windows 10/11 or macOS Sonoma/Sequoia), a quad-core CPU (Intel Core i5 / Ryzen 5 / Apple Silicon M1+), and at least 8 GB RAM.

How do I install Cities Skylines (v1.21.1-f9) without errors?

Extract the downloaded archive using 7-Zip, WinRAR, or Keka into a clean directory, whitelist the folder in Windows Security (or clear macOS quarantine via xattr -cr), and run the executable.

Will updating Cities Skylines to v1.21.1-f9 keep my existing settings and saves?

Yes, user profiles, presets, and save files are stored in your local AppData or ~/Library/Application Support directory and remain intact when upgrading to v1.21.1-f9.

Cities Skylines (v1.21.1-f9) Update Changelog, Release Notes & Safe Upgrade Guide

v1.21.1-f9

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Cities Skylines (v1.21.1-f9) Update Changelog, Release Notes & Safe Upgrade Guide

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PC 10.6 GB Published on, Oct 17, 2026 Last Updated - Nov 15, 2026 [v1.21.1-f9]

v1.21.1-f9

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Download Cities Skylines (v1.21.1-f9) latest update and release changelog on AnkerGames. Includes stability fixes, OS compatibility updates, and safe profile migration.

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Genres GameApplication Building

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Cities Skylines (v1.21.1-f9) Update Changelog, Release Notes & Safe Upgrade Guide Free Download - Game Review

Cities Skylines (v1.21.1-f9) Release Changelog Summary: The latest v1.21.1-f9 desktop build of Cities Skylines bundles all cumulative stability hotfixes, Windows 11 24H2 & macOS Sequoia compatibility improvements, and updated offline packages in a single verified download.

→ Download Cities Skylines (v1.21.1-f9) Full Updated Desktop Release

What's Included in Cities Skylines (v1.21.1-f9)

Cumulative Version Rollup: Includes all official stability patches, bug fixes, and feature updates released through build v1.21.1-f9.
Desktop OS Optimization: Verified compatibility with 64-bit Windows 10/11 and macOS Apple Silicon (M1/M2/M3/M4) & Intel systems.
Safe Profile & Preset Migration: Upgrading from an older build of Cities Skylines retains your existing user preferences, presets, and local save files automatically.
Related Pages: Full Download Page | How to Install | System Requirements | Troubleshooting Fixes

Cities Skylines – Windows 10/11 & macOS Configuration, Preset & Save Data Paths

When backing up user profiles, presets, or local save data between a Windows Desktop workstation and a MacBook Pro/Studio for Cities Skylines (v1.21.1-f9), check these default desktop directories:

Desktop Platform	Default User Data / Config / Preset Directory	Backup & Migration Notes
Windows 10 / 11 (x64)	`%APPDATA%\{Cities_Skylines}\` or `%USERPROFILE%\AppData\LocalLow\{Cities_Skylines}\`	Back up this folder before installing a newer version or resetting preferences.
macOS (Apple Silicon M1–M4 / Intel)	`~/Library/Application Support/Cities_Skylines/` & `~/Library/Preferences/`	Use `Cmd + Shift + G` in Finder to open hidden Library paths directly.

Release Metadata Summary – Cities Skylines

Title / Package: Cities Skylines
Verified Build Version: v1.21.1-f9
Archive Size: 10.6 GB
Category: GameApplication, Building
Target Desktop OS: Windows 10/11 (64-bit) & macOS Desktop (Apple Silicon M1/M2/M3/M4 & Intel)
Primary Download Hub: Download Cities Skylines (v1.21.1-f9) Full Desktop Build

Frequently Asked Questions – Cities Skylines (v1.21.1-f9)

Is Cities: Skylines completely free?

The package listed here is offered as a free download at version v1.21.1-f9. Note that the official Steam edition is a paid game — Valve lists Cities: Skylines as a paid title, not free-to-play.

How do I install Cities: Skylines from this package?

There is no setup wizard. Extract the archive to a folder excluded from your antivirus, install the apps from the Redist or _CommonRedist folder, then launch Cities Skylines.exe inside the game folder as administrator. Full details are in Installation Guide.txt.

Does this download include the DLC expansions?

No. This is the base game package. The site admin has confirmed mods are not part of the download either, so you would need to source expansions separately.

Which platforms support Cities: Skylines?

Valve lists Windows, macOS, and Linux support for the official Steam edition. This package is listed for Windows, macOS, Linux, Android, and iOS.

Why does the game crash a few seconds after launching?

In our testing, the most common cause was skipping the Redist folder installation or extracting the archive inside an antivirus-scanned directory. Install the redistributables first and run the executable as administrator.

Can I use mods with this version?

The official Steam edition supports Steam Workshop and an included level editor. This package does not, and the site admin has stated they do not work on mods for it.

Installation Guide

Step-by-step setup process

Game is pre-installed / portable, therefore you do not need to install the game.

Just extract the rar / zip file using 7-Zip or WinRAR.

Simply launch the game directly from the game executable as Administrator.

Important Notes

Install necessary apps from Redist or _CommonRedist to ensure game launches without problems.
Always extract game in Antivirus / Defender excluded folder to prevent false-positive file quarantine.
Always run the game as administrator.