The Skull CTF

by Wokwi

A mind-bending hardware puzzle in three acts

View all updates Nov 26, 2020

Black Friday Special!

by Uri Shaked

Ahoy Mateys!


Black Friday Special: Tomorrow—Friday, the 27th of November—you can get your very own Skull for the special price of $20.32*, up a full $0.32 from the standard $20!** This is a once-in-a-lifetime offer that will be available for one day only! <Insert hard-selling CALL TO ACTION here.>

* Crowd Supply only supports whole-dollar pricing, so the Black Friday Special will actually cost $20.

** Actually, it turns out Crowd Supply does support partial-dollar pricing, you just can’t see it on the page. Sorry about that. Um…drop us a line if you want your $0.32 back?

About the Author

Uri Shaked


$4,254 raised

of $666 goal

638% Funded! Order Below

Product Choices


The Skull

A single The Skull CTF board (☠)


Programmer & Header

Cheat! Or, better yet, design your own puzzles and load them into The Skull's brain using the included SparkFun PGM-09825 AVR Pocket Programmer. Also comes with a ribbon cable and the SMT header you'll need to use it. (Does not include the MiniUSB cable.) Some soldering skill required.



Wokwi creates tools for the Arduino and maker community, such as AVR8js, the Open source Arduino Simulator, and GoodArduinoCode.

Uri Shaked

JA Electronics


PCB Fabrication & PCB Assembly

See Also

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