Asteroids
One arena for up to 16 ships. Break rocks together; a big rock splits in two. 0 flying and 0 watching now.
7 rocks in the arena. 0 ships flying.
FSR
The loader reads the arena's seat count and scores from the room, so the numbers above were rendered by the server.
Plaza
One room at twenty ticks a second moves every ship, rock and shot and sends the whole arena as one shared frame each tick.
Fibre
Each frame is built and encoded once, then the same buffer goes into every player's Fibre queue.