Websites offering "free cracked" versions often come with severe risks:
However, remember that The legitimate demo is a fantastic starting point. If you fall in love with the game (and you will), consider buying the base game during a Steam sale. It frequently drops to $7.49 —the price of a sandwich. For that small investment, you unlock the Steam Workshop, which contains over 500,000 mods and assets capable of transforming your Windows 7 machine into a city planning supercomputer.
nVIDIA GeForce GTX 660 (2 GB) or AMD Radeon HD 7870 (2 GB) How to Get Cities: Skylines for PC
Occasionally, the Epic Games Store gives away Cities: Skylines for free during promotional events.