[senfiaj]

Maybe. But I remember one game developer told that they face even a more challenging problem, which is the synchronization between players in multiplayer real-time games. Just imagine different users having significantly different network latencies in a multiplayer shooter where a couple milliseconds can be decisive. Someone makes a headshot when the game state is already outdated. If you think about this you can appreciate how it's complicated just to make the gameplay at least not awful...

[maximinus_thrax]

And yet it has been done with different approaches, it's complicated, yes, as I said. But nothing nightmarish about it.