Hey @stephen2976,
best would be if you get in touch with the developers of the game you love and ask them if they plan to bring their game on Stadia.
You could also leave feedback for the Stadia developers to let them know that you'll love to see specific games (simply tap your profile picture in the top right corner on stadia.google.com or in the Stadia app and select "feedback").
You could also add your wishes in this mega thread.
