Managing Multiple Installs There are tons of third-party mods available for rFactor. So much in fact that you probably do not want to install all of them in the same installation of rFactor. In the pre-Steam days, people kept multiple installations of rFactor on their harddisk. With Steam, that is still possible, with a little twist. This guide explains how to do install third-party mods in separate installations.
https://steamcommunity.com/sharedfiles/filedetails/?id=402188900