https://www.pcgamer.com/play-the-elder-scrolls-online-and-its-morrowind-expansion-for-free-this-weekend/

You can try out The Elder Scrolls Online and its well-received Morrowind chapter for nothing this weekend on Steam, as Bethesda celebrates QuakeCon. 

This isn't the first time that ESO has been free to try, but it is the first time the Morrowind part has. You can sample this offer from now until August 15. If you like what you play, the base game (which now includes the Morrowind chapter) is just $10/£7.49 this weekend, and the latest Summerset expansion is 25% off too.