Sklylines 1 was on Unity, but Skylines 2 is using Unreal as its engine this time.
I stand corrected. Must have been confused by the tech demo and hearing about “the new engine” from some CS content creators and making assumptions. It is indeed made in Unity, which is a shame. I used to love that engine, but it really hasn’t kept up with the times. I was so excited for it being in UE5.