Is there evidence that this is true? Ive read that the US is actually not more litigious than some European nations and the idea that it is has been boosted by corporations that want to shift public opinion against plaintiffs (an example being the infamous McDonald’s coffee lawsuit)
Here are games I like that are just mobile ports without ads or micro transactions:
Slay the spire
Monster train
Mindustry
Mini metro
Honorable mention to Vampire Survivors which is mostly a simple port, but it does incentivize you to watch ads for extra lives.