Volunteers from the Stop Killing Games movement looked at over 700 games requiring internet to see how many are playable after support ends. The results are bad.
Link to the games list:
https://docs.google.com/spreadsheets/d/1at1k7qIo5dgPp6K1aCrYIyAgNOjY-IhF
Link to the European Citizens' Initiative:
https://eci.ec.europa.eu/045/public/#/screen/home
https://www.stopkillinggames.com/
#stopkillinggames
Are they not archived in Flashpoint?
I checked and Vollyball is, but the other variants are not.