I'm going full Tbone and say 15-20 games will reach that.
Switch isn't even 2 years old but has already 3 10 million sellers, with several others guaranteed already to cross that line. We don't even know what else Nintendo is gonna bring to us, but I'm fairly sure several other big sellers will come, maybe even some very unanticipated titles
The Nintendo eShop rating Thread: http://gamrconnect.vgchartz.com/thread.php?id=237454 List as Google Doc: https://docs.google.com/spreadsheets/d/1aW2hXQT1TheElVS7z-F3pP-7nbqdrDqWNTxl6JoJWBY/edit?usp=sharing
The Steam/GOG key gifting thread: https://gamrconnect.vgchartz.com/thread/242024/the-steamgog-key-gifting-thread/1/
Free Pc Games thread: https://gamrconnect.vgchartz.com/thread/248138/free-pc-games/1/
