The first thing you will need to do to download RIFT is get out universal patcher Glyph. This can be found by clicking here
Be sure to view the information regarding the System Requirements for RIFT prior to installing.
Once this has been downloaded, run the GlyphInstall.exe file and go through the install process normally.
Once you have finished installing Glyph, on the left hand side you will see your available games. Select RIFT and then click on the install button. Choose the location you want the game to be installed and then click OK. Once this installation completes you will be able to access RIFT by clicking Play.
Note – Your Glyph login information will be the exact same as your normal RIFT login information.