From Wikipedia
Amusement park and theme park are terms for a group of rides and other entertainment attractions assembled for the purpose of entertaining a large group of people. An amusement park is more elaborate than a simple city park or playground, usually providing attractions meant to cater to children, teenagers, and adults.
A theme park is differentiated from an amusement park by its various 'lands' (sections) devoted to telling a particular story. These lands are characterized by the idea that the immersive environment they create contains architecture, landscaping, stores, rides, and even food that support a specific theme. Visual intrusion from other 'lands', or from outside the park, are considered undesirable. Non-theme amusement park rides will usually have little in terms of theming or additional design elements. Also, a single themed attraction by itself does not qualify an amusement park as a theme park. It takes a multiplicity of elements in a common area to define a 'land', and numerous lands to constitute a theme park. The original theme park, and archetype of the designation is Disneyland in Anaheim, California.
Amusement parks evolved in Europe from fairs and pleasure gardens which were created for people’s recreation. The oldest amusement park of the world (opened 1583) is Bakken, at Klampenborg, north of Copenhagen, Denmark. In the United States, world's fairs and expositions were another influence on development of the amusement park industry.
User Summary
Theme parks games usually deal with the construction and management of a Theme Park. Other games deal with specific attractions.