A mining rig that lives where you put it. It's fitted, sealed and bolted down — nobody builds one, nobody packs one, and nothing can be taken out of it. Players power it, start it, wait, and collect what it drops.
The loop is deliberate rather than passive. A cable reel has to be run from a generator sitting within twelve metres, the generator needs fuel, and the cycle only advances while the power is actually on — running dry pauses progress rather than wiping it. When the cycle finishes, the BTC drops into the rig's own cargo for whoever is standing there.
The payout destroys the hardware in one go: sparks, smoke, an electrical bang, and then the rig sits dead and smoking for as long as you set. That dead time, not your restart schedule, is what stops a room being farmed back to back. Set it to zero and burn-out is off entirely.
Nothing is saved. Every restart hands the room back in its starting state — no cable, an empty generator, no uncollected coins — so the next person to find it sets it up themselves. It's a static variant of the Crypto Mining Rig, repathed to its own prefix, so both can run on the same server.