As of this review, I don't own RCT2 or any of the expansions on GOG but I have owned the physical copies for years. That being said, let's get on with the review. RCT2 is a dynamic and innovative game in its own right for several reasons. The developers made the decision to master 2D graphics. Not only is there a great amount of detail but there are also almost no graphic glitches. The player can freely raise and lower ride tracks, paths and decorations. This greatly expands the player's creative freedom and allows for further immersion. A lot of these features were not seen until RCT2 came out. It is also a dynamic simulation. Every guest in your park has their happiness calculated. This adds an element of strategy. The player needs to find efficient places for shops and restrooms to keep the guests happy. In addition, strategic placement and pricing means more income from gift shops. If a guest is unhappy, they can go out of their way to make others miserable. This is countered through the well-balanced staff system. You need handymen to clean the park, mechanics to repair rides, guards to keep unruly guests under control, and entertainers to help guests stay happy. In addition, rides have values calculated to determine excitement, intensity, and how sick it may make a rider. This may seem complicated to some but the game is incredibly fun. There is a strong sense of satisfaction from completing a unique ride such as a roller coaster and watching how people interact with it. In addition, watching your park grow from a couple of rides to a full-fledged theme park is exciting. The scenarios add to the fun. The first expansion was slightly glitchy but was still a great addition to the game. However the second expansion was rushed. It adds the Atari logo to the game and has DRM on the physical copy. This isn't the problem, though. A lot of features were lacking and glitchy. Hopefully GOG patched these issues. This is why RCT2 TTP gets 4 stars, not 5. Buy it!
