DEF CON

DEF CON 33

The 2025 DEF CON edition whose official Mar Williams art badge returned to a non-electronic physical format with layered 3D/lens interactions and an Arts & Entertainment badge challenge.

Las Vegas Convention Center, Las Vegas, Nevada · United States · 2025

DEF CON 33 Badge

An official DEF CON 33 non-electronic physical badge by Mar Williams, built around layered art, 3D image interactions, lenses, clue spotting around the con, and an Arts & Entertainment booth badge challenge.

NilbinSec DC33 Hack 'Em Crack 'Em Robots

NilbinSec's Hack 'Em Crack 'Em Robots was a DEF CON 33 badgelife release announced in the DEF CON #Badge Life forum, sold as a limited full-size badge set through RENXCHANGE, and listed in the DC33 community schedule as a badge drop.

Lifecycle

Add-ons & Upgrades

DEF CON 33 Badge source-backed

badge format

Non-electronic physical art format

Public creator material says DC33 was a non-electronic badge year, making optical interaction and material design the documented hack surface instead of firmware.

Compatibility: DEF CON 33 Badge

DEF CON 33 Badge historical

physical challenge

Layered-lens optical challenge

Mar Williams described the DC33 badge as interacting with 3D images and layered art around the con through different lenses and lens combinations.

Compatibility: DEF CON 33 Badge

DEF CON 33 Badge documented

temporary credential

Cash-line paper badge fallback

DEF CON's August 7, 2025 news notice says attendees in the cash line were receiving paper badges because the main badge shipment was delayed.

Compatibility: DEF CON 33 registration

Operational history

Issues & Camp Impact

hardware and firmware source gap · source-backed but incomplete · needs public technical archive

The public sources document high-level Pico/OLED/button/SAO/EEPROM/game behavior, but this pass did not recover schematics, PCB files, BOM, firmware source, protocol documentation, production files, or a public repository.

Component and firmware claims remain limited to the public product and announcement text, with no invented electronics or implementation details.

physical-artifact caveat · source-backed but incomplete · needs deeper artifact inventory

Public sources document the non-electronic lens/layer concept, clue trail, badge-making talk, and black-badge collaborator note, but this pass does not inventory every physical lens, badge type, printed layer, clue, or final challenge solution.

The catalogue records verified badge lineage and interaction surfaces while leaving full artifact photography and challenge reconstruction for a later pass.

Resources

Sources