1.Download the RollerCoaster Tycoon 3
2. Select 'Regular Download'. A survey will appear to verify that you are a human and not a bot, this is to protect the number of file downloads. Simply fill in a short free survey and then download the file.
3. Save the file to your desktop and open it.
4. Now you have free RollerCoaster Tycoon 3.
5. Enjoy playing!!!