FNAF Sprunki gives you a fixed electricity budget that runs from midnight to 6 AM. Everything you do pulls from that budget at a different rate. The camera feed running costs power continuously while it is active. Each door light costs power while held on. A closed door drains power as long as it stays closed. None of these costs are prohibitive individually. Together, across six hours of game time, they determine whether the lights are still on when morning arrives.
The game ends in two ways: you reach 6 AM, or the power runs out. If the power runs out, the office goes dark and you have no way to stop what happens next. This means the pressure in FNAF Sprunki is not just about the animatronics moving toward you. It is about making decisions under that pressure without burning resources on threats that have not materialized yet. Experienced players use the cameras in short bursts, check lights only when movement has been detected nearby, and keep doors open as the default state rather than a risk they manage reactively.

