Unfortunately, we do not support local multiplayer on PlaytestCloud at this time. Our platform only works when players have an internet connection to record then upload their video to our servers.
Having two players playing at the same time, on the same device, is also something we decided not to support. Our players are individually registered on our platform and signed an NDA that cannot be shared with a third party.
We take security very seriously here at PlaytestCloud and we do not wish to compromise the security of any game that uses our service. Check out our blog post on how we protect every game that uses PlaytestCloud.