> "PP is a really cool and unique game, but there's tons of games with similar art styles and it's impossible to understand what's good about it from a trailer"

I have to disagree with this (well, the second part of your assertion anyway; I absolutely agree it's a cool and unique game!). Just reading the premise of Papers Please was enough to hook me. I just knew I would like it, and wasn't disappointed when I actually bought it.

Also, all of Lucas Pope's games are visually distinctive, and Papers Please is no exception. I absolutely cannot think of any other game with a similar visual style which wasn't also made by Pope.