Am I the only one who didn't enjoy Cities: Skylines? I played without any expansion (wasn't really hooked enough by the base game to go looking for them) and found the gameplay quite limited compared to the few old city building games I played as a kid.
I still play Pharaoh to this day 20 years later and it's still challenging and complex and there's tons of gameplay to explore. In comparison, I played Cities: Skylines for about a weekend, got over the initial difficulty with managing finances, and then it became a matter of building pretty roads and forcefully read people's complaints on in-game-Twitter.