Westworld's premiere established the rules of the game, the machinations of the designers and the loops of the hosts. Episode 2 introduced viewers to the guests’ perspective.
“Chestnut” lacked the first episode’s fabulous bookends of Dolores’s mirrored interrogations, but it made up for it with the introduction of new characters and the thickening of plots.
It turns out that Westworld has a moral choice system like so many other role-playing games. In Mass Effect, for example, your actions and dialogue choices fall into “renegade” or “paragon” categories, opening different story possibilities and affecting your reputation. In Fable, evil characters sprout devil horns while those who do good get haloes.