Last updated: July 2, 2026
By using CIPHER (the "site"), you agree to these Terms of Use. If you don't agree, please don't use the site.
CIPHER is provided for entertainment and general-interest learning. You may play the game and browse the site for your personal, non-commercial use. Please don't misuse the site — that includes attempting to disrupt it, scrape it at scale, or use it in any unlawful way.
Each puzzle's rule is verified mechanically before it ships, and the educational notes describe real techniques from cryptography, wordplay, and mathematics. Even so, the content is provided "as is," without warranty of any kind — errors can slip through. Nothing here is professional advice. If you spot a mistake or an ambiguous puzzle, please tell us via the Contact page.
The name "CIPHER," the game, the puzzle set, and the site design are ours. The underlying techniques — Caesar shifts, digit sums, transpositions — belong to everyone, but the specific puzzles, wording, selection, and presentation are original work. Please don't republish substantial portions without permission.
The site may link to third-party resources and may display advertising served by third parties. We're not responsible for the content, accuracy, or practices of sites we link to or of advertisers. See our Privacy Policy for how advertising and cookies are handled.
To the fullest extent permitted by law, we are not liable for any loss or damage arising from your use of the site or reliance on its content.
We may update these Terms from time to time. The "Last updated" date above reflects the current version. Continued use of the site after changes means you accept the revised Terms.
Questions about these Terms? Reach us at support@threadedpixelstudios.com.