Cratejoy: Discover Unique Subscription Boxes for Every Interest

A Brief Guide to Cipher Solving

A Brief Guide to Cipher Solving - Main image
$12.6 $20 In stock

A Brief Guide to Cipher Solving



Unlock the secrets of code breaking with this compact amateur's guide, perfect for Cosykiller players and aspiring sleuths. Packed with:



• Common letter substitution alphabets


• Tips for cracking fiendish ciphers


• Essential cheat sheets



A must-have companion for any Cosykiller Series adventure. Decode mysteries like a pro!

Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (5.0 / 5 · 5 reviews)

Leo ★★★★★

I was stuck on a puzzle in Cosykiller for days until I grabbed this guide—the compact layout makes it easy to flip between sections mid-game, and the substitution alphabets are laid out way clearer than anything I found online. Perfect little sleuthing companion.

Riley ★★★★★

The section on common letter substitution alphabets is laid out so clearly that I cracked my first puzzle within an hour of reading it. It's compact enough to keep next to my keyboard during Cosykiller sessions.

Eli Q. ★★★★★

Finally got my hands on this guide after struggling with some of the later puzzle ciphers in Cosykiller. The compact layout makes it easy to flip through mid-game without breaking immersion.