You don't need a sketchy "license key.txt" to get a great deal on the game. Because the game is a few years old, it is frequently available at a massive discount. 1. Seasonal Sales
The strongest argument for owning a legitimate copy is access to the Steam Workshop. You can download tens of thousands of community-made assets, including: Real-world landmarks. Advanced traffic management tools (like TM:PE). Unique vehicle skins and map themes. How to Get Cities: Skylines Legally (and Cheaply)
If you have already downloaded a file named "license key.txt" from an unverified source, take these steps immediately:
Permanently delete the file and clear your recycling bin.
