Quick answer: Construct 3 multiplayer bandwidth growing minute-over-minute? Repeated full-state syncs; switch to delta-only.
Initial state sync: 50KB. After 10 minutes: 500KB/min sustained. Players exceed mobile data caps.
Delta-only updates
Send only changed fields. Periodic full-state for resync.
Or compress
gzip the state; lower bandwidth per packet.
Audit per-second usage
Bandwidth profile per minute; spikes diagnose the bug.
“Network bandwidth scales with state size. Delta reduces.”
Networked games need bandwidth profiles. Without them, the spike is invisible until the bill or the bug report.