[utensil4778]

You can use Steam to stream over the internet. You have to enter a pairing code once on the remote machine, but after that you can play anything, you can even add a "non-steam game" to stream any application you want.

I do this all the time with my powerful work computer at the office while I'm at home. It works surprisingly well, actually.

The only shitty part is that they removed the ability for you to download a new game on the remote machine from your local steam client. The only way to do it now is with the steam app on your phone.