Gifts for Engineers & Architects

Looking for an unforgettable, screen-free challenge for a brilliant mind?

Puzzlocks makes original mechanical puzzle locks for people who love figuring things out. Engineers, architects, developers, designers, anyone who finds a really good problem more satisfying than almost anything else.

Each puzzle is built by modifying a real industrial padlock from the inside. The mechanism is hidden. The solution is not obvious. And the only way through is careful observation, lateral thinking, and a willingness to question everything you think you know about how a lock works.

The collection includes puzzles at every difficulty level, from satisfying beginner and intermediate challenges like the PicoLock, Locus, and Ant Hunt which take between 5 to 8 hours to crack, to ultimate masterworks like the DanLock and Loki, expert sequential discovery puzzles requiring up to 18 hours of intense focus that have stumped experienced puzzle solvers for weeks.

Made from solid brass and stainless steel. Designed by Boaz Feldman and Dan Feldman. Built to last and impossible to forget.

If you are looking for a retirement gift, a milestone birthday present, or something genuinely original for someone who already has everything - this is it.


Puzzlocks Collection Overview & Comparison

Puzzle Model Material Difficulty Level Ideal Recipient
DanLock & Loki Solid Brass and Stainless Steel Stumps experienced puzzle solvers for weeks Engineers, Architects, Developers, Designers
Ant Hunt & Locus Solid Brass and Stainless Steel Intermediate to Advanced Challenge Problem Solvers, Analysts, Lateral Thinkers
PicoLock Solid Brass and Stainless Steel Satisfying beginner challenge (Most people crack in a few hours) People who love figuring things out