| Date | User | Challenge | Score |
| Machgielis | Finding Flags | 2 | |
| Abstract | Euler's Totient | 20 | |
| nkfle | You either know, XOR you don't | 30 | |
| kathleenah | Structure of AES | 15 | |
| W4t3r_m3Sc0r | Favourite byte | 20 | |
| Arich | Favourite byte | 20 | |
| Arich | XOR Properties | 15 | |
| anhsaoleloi | Network Attacks | 5 | |
| leo_god | XOR Starter | 10 | |
| kathleenah | Resisting Bruteforce | 10 | |
| leo_god | Bytes and Big Integers | 10 | |
| Arich | XOR Starter | 10 | |
| edisonsoo1263 | XOR Properties | 15 | |
| kathleenah | Keyed Permutations | 5 | |
| Unknown_person | ASCII | 5 | |
| W4t3r_m3Sc0r | XOR Properties | 15 | |
| Rayyiskull | ASCII | 5 | |
| Silence2313 | Hex | 5 | |
| Arich | Bytes and Big Integers | 10 | |
| HeptaZ | Adrien's Signs | 80 | |
| cyb34ngeL | Hex | 5 | |
| Arich | Base64 | 10 | |
| cyb34ngeL | ASCII | 5 | |
| Arich | Hex | 5 | |
| Silence2313 | ASCII | 5 | |
| AltafSaleh | Forbidden Fruit | 150 | |
| AltafSaleh | Beatboxer | 150 | |
| leo_god | Base64 | 10 | |
| AltafSaleh | Paper Plane | 120 | |
| AltafSaleh | Oracular Spectacular | 150 | |
| AltafSaleh | The Good, The Pad, The Ugly | 100 | |
| AltafSaleh | Pad Thai | 80 | |
| Arich | ASCII | 5 | |
| AltafSaleh | Oh SNAP | 120 | |
| AltafSaleh | Dancing Queen | 120 | |
| AltafSaleh | Stream of Consciousness | 80 | |
| kizhxre | Lemur XOR | 40 | |
| AltafSaleh | Logon Zero | 80 | |
| AltafSaleh | CTRIME | 70 | |
| AltafSaleh | Bean Counter | 60 | |
| AltafSaleh | Symmetry | 50 | |
| AltafSaleh | Triple DES | 60 | |
| AltafSaleh | Lazy CBC | 60 | |
| AltafSaleh | Flipping Cookie | 60 | |
| AltafSaleh | ECB Oracle | 60 | |
| AltafSaleh | ECB CBC WTF | 55 | |
| Silence2313 | Great Snakes | 3 | |
| kizhxre | Encoding Challenge | 40 | |
| AltafSaleh | Passwords as Keys | 50 | |
| Silence2313 | Finding Flags | 2 |
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