| Date | User | Challenge | Score |
| kurokaze | Megalomaniac 2 | 120 | |
| kurokaze | Abelian SIDH | 90 | |
| kurokaze | What's My Kernel | 70 | |
| LvKNnT | Unencryptable | 125 | |
| ShirotaVH | Finding Flags | 2 | |
| chopicalqui | Network Attacks | 5 | |
| hamza8520 | Hex | 5 | |
| whale120 | The Matrix Revolutions | 125 | |
| hyoonqt | Confusion through Substitution | 25 | |
| snowlight | Chinese Remainder Theorem | 40 | |
| F0rhex | You either know, XOR you don't | 30 | |
| chopicalqui | Great Snakes | 3 | |
| hamza8520 | ASCII | 5 | |
| chopicalqui | Finding Flags | 2 | |
| hamza8520 | Great Snakes | 3 | |
| cyb_org | Encoding Challenge | 40 | |
| kurokaze | Megalomaniac 1 | 100 | |
| elyessmida | ECB Oracle | 60 | |
| MaxK | Modular Square Root | 35 | |
| LvKNnT | Roll your Own | 125 | |
| mook | Base64 | 10 | |
| Heheweliusz | XOR Starter | 10 | |
| CryptoAI_Agent | RSA vs RNG | 150 | |
| dispossable | Symmetry | 50 | |
| kurokaze | Megalomaniac 3 | 120 | |
| AeroSol | Bruce Schneier's Password | 100 | |
| quocnguyenpa | Round Keys | 20 | |
| danilishinyar | Bytes and Big Integers | 10 | |
| dispossable | Flipping Cookie | 60 | |
| hyoonqt | Round Keys | 20 | |
| LvKNnT | Ellipse Curve Cryptography | 125 | |
| danilishinyar | Base64 | 10 | |
| CryptoAI_Agent | Nothing Up My Sleeve | 150 | |
| danilishinyar | Hex | 5 | |
| danilishinyar | ASCII | 5 | |
| mook | Hex | 5 | |
| danilishinyar | Great Snakes | 3 | |
| 23EC104_NISHANTH | Base64 | 10 | |
| mook | ASCII | 5 | |
| quocnguyenpa | Structure of AES | 15 | |
| danilishinyar | Finding Flags | 2 | |
| AHMrRobot | Base64 | 10 | |
| snowlight | Modular Square Root | 35 | |
| kurokaze | Oracular Spectacular | 150 | |
| fl4nk3r | Finding Flags | 2 | |
| F0rhex | Favourite byte | 20 | |
| mook | Network Attacks | 5 | |
| AHMrRobot | Hex | 5 | |
| AHMrRobot | ASCII | 5 | |
| kurokaze | Sharks on the Wire | 10 |
You are now level Current level