Guests, called "newcomers" by hosts while in the park, are humans who pay a large sum of money to visit and participate in the Westworld park.
Guests can choose whatever path they want to take within the park, whether it be as a hero (a 'white hat') or as someone who does evil deeds (a 'black hat'). There are many storylines and narratives offered to guests.
The experience for the guests in the town of Sweetwater is simple and safe. The experience becomes increasingly more intense the further one travels away from Sweetwater. ("The further out you venture, the more intense the experience gets.")