This DIY Anti-Theft Steam Deck Mod Uses a Taser to Protect Battery
Repeated requests, polite notes, and passive-aggressive sticky notes all failed. One Steam Deck owner’s family kept draining his handheld’s battery before he could play, so he escalated. The result is a 3D-printed spiked case housing a Raspberry Pi with object-detection camera, a servo, and a mounted taser. If someone lingers too long in front of the camera, they get a warning audio clip. If they don’t leave, they get zapped. It’s absurd, but the underlying problem — defending your handheld’s battery life inside your own home — is more relatable than any of us want to admit.
The Porcupine Protocol
Reddit user ConroyyJenkinss posted a GIF of the system in action on the SteamDeck subreddit. The build pairs a Raspberry Pi (likely a Pi Zero or Pi 4) with a camera module running object-detection software. Approach the Deck, and a speaker plays a deterrent audio clip. Stay within the detection zone for more than a few seconds, and a servo actuates a consumer-grade taser mounted on top of the device. The whole assembly sits inside a custom 3D-printed case covered in spikes — a passive deterrent that makes the device literally uncomfortable to hold. The creator hasn’t released STL files or scripts, so this remains a one-off, but the mechanics are straightforward enough for anyone with a 3D printer and basic electronics knowledge to replicate.
When the Security Becomes the Risk
The obvious objection: unintended activation. If the camera misfires while the Deck is in a bag or backpack, the taser could discharge against the device’s internals or, worse, against flammable material. The creator presumably accounted for this — the taser only fires after sustained detection, and the camera requires a clear line of sight — but the mod highlights a tension every hardware hacker faces. Valve designed the Steam Deck’s thermal management, shielding, and battery housing to tight tolerances. Bolting on a high-voltage module voids any pretense of safety certification. For most owners, a password-protected suspend mode or a tamper-proof USB-C lockout would solve the same problem without the liability. But for the subset of the community where passive measures have failed and the Deck’s battery is a sacred resource, this mod represents a logical endpoint. The conversation it sparked is the real value — how far are you willing to go to keep your handheld charged and ready? From heart rate monitoring plugins to kinetic self-defense, the Steam Deck community keeps redefining what a handheld can be.