So I recently found out about the multiplayer extension (where players can play together with different devices) but when I tried using the raycasting extension along with it, I couldn’t set the “myself sprite” to be the player I want. And I also want it so that every player can play in 3D in their own POV.
No. The Arcade screen is shared between all devices in multiplayer, same as if you were to connect 4 controllers.
Eventually, the Arcade devs want to implement each player having their own camera in multiplayer, but that might not be anough, as the raycasting extension is not designed for more tgan 1 person. You could ask @AqeeAqee to see if it’s possible, though I doubt it I without a lot of time and effort spent.