"Roller Coaster Tycoon 3" is a theme park simulation game in which players make money by building rides and attractions to lure as many people as possible into their theme park. However, all of the games rides are not initially available at the onset. To unlock these rides, you must complete certain in-game tasks.
Begin the game and select "Career Mode" in the game's main menu.
Complete the assignments in career mode with a ranking of "Tycoon." These requirements will vary depending on the assignment. For example, to get a ranking of "Tycoon" in the "Vanilla Hills" assignment, you must have a minimum park value of £65,000 and have 600 guests in your park.
Complete all 18 assignments in career mode with a rating of "Tycoon" to unlock all of the rides. You will unlock rides for every assignment you complete.