| Date | User | Challenge | Score |
| Damsssss | Hex | 5 | |
| sangi47 | Hex | 5 | |
| NicoO | Bringing It All Together | 50 | |
| Damsssss | ASCII | 5 | |
| lvcv4y | Factoring | 15 | |
| Damsssss | Great Snakes | 3 | |
| lvcv4y | RSA Signatures | 25 | |
| wnrfx | Modular Arithmetic 1 | 20 | |
| Spockz | Favourite byte | 20 | |
| JohnMallela | Base64 | 10 | |
| mrmanonthemoon | Base64 | 10 | |
| cosminm53 | Euler's Totient | 20 | |
| Jaxa | Diffusion through Permutation | 30 | |
| Lulda | XOR Starter | 10 | |
| JohnMallela | Hex | 5 | |
| mrmanonthemoon | Hex | 5 | |
| sangi47 | ASCII | 5 | |
| ShubhamV | Base64 | 10 | |
| JohnMallela | ASCII | 5 | |
| lvcv4y | RSA Decryption | 20 | |
| Teeko | ASCII | 5 | |
| lanxve | Greatest Common Divisor | 15 | |
| mihakar | Base64 | 10 | |
| ShubhamV | Hex | 5 | |
| NicoO | Diffusion through Permutation | 30 | |
| mihakar | Hex | 5 | |
| JohnMallela | Great Snakes | 3 | |
| Jessemaduchi | ASCII | 5 | |
| ShubhamV | ASCII | 5 | |
| havzbayz | XOR Starter | 10 | |
| Smarten | You either know, XOR you don't | 30 | |
| ShubhamV | Great Snakes | 3 | |
| JohnMallela | Finding Flags | 2 | |
| Sphinxxy | Bytes and Big Integers | 10 | |
| mihakar | ASCII | 5 | |
| lvcv4y | Private Keys | 20 | |
| ShubhamV | Finding Flags | 2 | |
| Jessemaduchi | Great Snakes | 3 | |
| mrmanonthemoon | ASCII | 5 | |
| sangi47 | Great Snakes | 3 | |
| Valcia | Round Keys | 20 | |
| sangi47 | Finding Flags | 2 | |
| 0xFl45h_py | Great Snakes | 3 | |
| Teeko | Great Snakes | 3 | |
| mrmanonthemoon | Great Snakes | 3 | |
| ezpc | Great Snakes | 3 | |
| Lulda | Bytes and Big Integers | 10 | |
| Teeko | Finding Flags | 2 | |
| NicoO | Confusion through Substitution | 25 | |
| lvcv4y | Euler's Totient | 20 |
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