Project P.I.T.T. Fuses: All 3 Locations & Fuse Box

The fuses are the first checkpoint of the hidden upper route, and the trigger for the hidden UP? achievement (33.5% of players have it). Here is everything the hunt involves.

How many fuses are there?

Three. All of them are placed high above the main floor:

• on metal beams,
• on catwalks,
• on light fixtures.

Exact spots vary with how much of the facility you’ve opened up, which is why every guide describes them by surface type rather than coordinates: sweep the high steel with your eyes and you will see the small fuse props sitting on flat surfaces.

Getting up there

Hold any object and jump — prop flight is an intended feature (the developer confirmed it: “originally a bug, I liked it so much it became a feature”). A box or panel works fine as your flight ticket.

Two things will interrupt your climb until you deal with them:

1. The 5-second height countdown (“I SEE YOU”) — the camera system. Either smash every camera by throwing products at them, or find the lights at the ends of the support pillars and look at them to disable the height lock. Both methods are official-FAQ confirmed; details in secrets.
2. Falling with the fuse. If a fuse drops into The Maw or clips into a wall: since update 1.0.5, key items respawn instead of being lost. Earlier launch-week reports of permanently eaten fuses are outdated.

The fuse box

The box lives on the catwalk level (the demo used the same mechanic — the demo’s 1.0.1 patch even added extra visual clues around it). Carry each fuse up and press F to slot it. All three in:

• the hidden UP? achievement pops — the fuses are the trigger, not the climb itself;
• the weighing platform (0/200 kg) opens nearby — continue with the item weights guide;
• the upper route toward the secret ending is now live.

Troubleshooting