One thing I don't see mentioned is basing movement of some things on a synced clock on a desktop machine open this link in multiple windows and size the window

One thing I don't see mentioned is basing movement of some things on a synced clock on a desktop machine open this link in multiple windows and size the windows so they are all at least partially visible at the same time http://greggman.github.io/doodles/syncThreeJS/syncThreeJS.html http://greggman.github.io/doodles/syncThreeJS/syncThreeJS.ht... they should all be in sync because they are basing the position of the spheres on the system clock. A networked game can implement a synced clock across systems and move some things based on that synced clock. Burnout 3 did this for npc cars. Once a car is hit then its position needs to be synced but before it is hit it's just following a clock based path