引用自 Chancho Papi：

With the steam machine now announced, and the idea of having a steam ecosystem becoming a possibility, wouldn't it make sense to finally allow different games to be played at the same time with the same account. Right now if i want to use my steam deck to play one game, while hypothetically playing another game on my PC. The steam deck would have to be in offline mode or else I will be kicked from the game on the PC. I know this sounds like a stupid problem as I don't know how common gaming while gaming is, but the steam machines shakes that up more. I could have a steam machine hooked up to a TV in the living room having a friend or significant other playing a game while I'm playing on my PC. Maybe just something to consider.

引用自 Golden Unicorn：

Dare I say , just start creating a steam account for every game you are gonna buy, if your like me, you don't buy many games.

mean while this would give you the best flexability to play on steam deck , pc, or steam machine.

it is kinda bogus that you can't have a steam account logged in on two computers at the same time, to play two different games on the account at once on two different devices.

引用自 Chancho Papi：

I could have a steam machine hooked up to a TV in the living room having a friend or significant other playing a game while I'm playing on my PC. Maybe just something to consider.