Portal for Apple II (2017)
deater.net
deater.net
I recommend it if you haven't tried it. It's fun but a little short: <https://jamiefuller.itch.io/portal-for-the-c64>
I've been wondering that myself. Is there anything from a horsepower perspective that prevents Microsoft from releasing an xCloud client for Xbox 360?
These chips don't even have floating point instructions. A single frame would take weeks to render even if they somehow had 100,000 times as much memory.
You render frames at a very low resolution and send them in a format that is quick to decompress. Then you send keyboard / mouse input to the computer that's running the game for you.
Streaming games has been done on the game boy so I'd imagine you could do it on other ancient hardware.