This post makes reference to personal computers with Windows, Mac or Linux OS’.
List of Digital Games Store for PC
Steam
Windows, Mac and Linux
https://store.steampowered.com/
Epic Games Store
Windows and Mac
https://www.epicgames.com
Humble Store
Windows, Mac and Linux
https://www.humblebundle.com/store
Fanatical
Windows, Mac and Linux
https://www.fanatical.com