Are there different versions of Parellels? I use a late 2013 Imac 27 on Catalina 10.15.7

I want to install a version of Parallels that will run on Cat 10.15.7, and work with Windows 10. Are there different versions available, or does the latest version always work? I run a MMORPG game (Elder Scrolls Online, or ESO), Been playing for years, but the next Expansion of the Game won't run on Catalina. My options are to either 1: Downgrade to a previous OS (sounds like it takes a complete wipe to reinstall an earlier system, or 2: Install a version of Parallels, and run the windows version of ESO on Windows 10 (recommended).

I use this Late 2013 27" iMac, because at the time, it had the fastest video system. Any Advise? ("Get a new life" will not be considered :) )

Thanks for any Info!

Jim