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.
DEF CON
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
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'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
Public creator material says DC33 was a non-electronic badge year, making optical interaction and material design the documented hack surface instead of firmware.
The product and forum sources describe a main badge that uses onboard controls and supports robot fights against other badges.
The DC33 community schedule lists a Hack 'em Crack 'em Robots badge drop by 2PAC in the Badgelife Community area.
The creator announcement directed attendees to spot clues around the convention and visit the Arts & Entertainment booth to participate in the badge challenge.
The NilbinSec announcement and product page describe two included SAOs, red and blue fighters, with game data and hidden interactions carried through EEPROM.
Mar Williams described the DC33 badge as interacting with 3D images and layered art around the con through different lenses and lens combinations.
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.
Operational history
The record should not imply that every attendee received the final physical art badge immediately at registration; the temporary paper credential is part of the event artifact history.
Component and firmware claims remain limited to the public product and announcement text, with no invented electronics or implementation details.
The entry remains image-free rather than copying creator, official, attendee, or press photography without provenance.
The record stays source-backed and image-free rather than copying product photos, forum images, social-media previews, or generated artwork.
The catalogue records verified badge lineage and interaction surfaces while leaving full artifact photography and challenge reconstruction for a later pass.
The catalogue includes it as an unofficial community badge artifact while keeping the official Mar Williams DEF CON 33 badge as a separate record.