steAM Key edu
tHe deVil's cAlculAtoR

Students and teachers with a current .edu or ac.uk email address are eligible for a free upgrade to the full version of The Devil's Calculator. Use the form below to request a steam key, mobile instructions below.




For mobile, navigate to the "upgrade" screen by hitting the "graph" button, and then "upgrade" to the right. Then tap "unlock free" and follow the instructions.


Cinq-Mars Media a 501(c)3 non-profit
Cinq-Mars Media is a 501(c)(3) non-profit organization developing technology to support scientific research related to human safety and education, and to make such technology and research available on a charitable basis. *Cinq-Mars Media is not affiliated with Numberphile and does not endorse their content. All content copyright the respective owners. The Devil’s Calculator © Cinq-Mars Media 2018