[paradox460]

Xbox used to have remote play together, via mixer. You could allow any viewer to play along side you, from the browser.

Microsoft killed it

[tarpitt]

the latency on this can't be good

[thunderfork]

A lot of games are less latency-constrained than you'd expect. FPSes are obviously rough with input lag, but stuff that's turn based and even many platformers feel "good enough" up to like 150ms