| Date | User | Challenge | Score |
| res430097 | Great Snakes | 3 | |
| dianziyun | XOR Properties | 15 | |
| 1502dthw | Diffusion through Permutation | 30 | |
| res430097 | Finding Flags | 2 | |
| Mrg19 | Manyprime | 40 | |
| Totorobish1 | Hex | 5 | |
| 1502dthw | Confusion through Substitution | 25 | |
| Bisl_ | Base64 | 10 | |
| Totorobish1 | ASCII | 5 | |
| Totorobish1 | Network Attacks | 5 | |
| Bisl_ | Hex | 5 | |
| dikayyy | Favourite byte | 20 | |
| Mrg19 | Square Eyes | 35 | |
| dianziyun | XOR Starter | 10 | |
| waterMelonakdsfk | XOR Properties | 15 | |
| 1502dthw | Round Keys | 20 | |
| Mrg19 | Monoprime | 30 | |
| starnotes | Micro Transmissions | 120 | |
| Bisl_ | ASCII | 5 | |
| qurat | Hex | 5 | |
| Mrg19 | Inferius Prime | 30 | |
| qurat | ASCII | 5 | |
| dikayyy | XOR Properties | 15 | |
| Bisl_ | Great Snakes | 3 | |
| Bisl_ | Finding Flags | 2 | |
| dianziyun | Bytes and Big Integers | 10 | |
| Cheetah555V2 | Base64 | 10 | |
| Mrg19 | Factoring | 15 | |
| Scotlande | ASCII | 5 | |
| Cheetah555V2 | Hex | 5 | |
| dianziyun | Base64 | 10 | |
| Totorobish1 | Great Snakes | 3 | |
| 24BECSE19_DT | Manyprime | 40 | |
| Totorobish1 | Finding Flags | 2 | |
| Cheetah555V2 | ASCII | 5 | |
| starnotes | Exceptional Curves | 100 | |
| SamaelAngelDark | Finding Flags | 2 | |
| suiya | You either know, XOR you don't | 30 | |
| qurat | Great Snakes | 3 | |
| qurat | Finding Flags | 2 | |
| Doodle8485 | ASCII | 5 | |
| Doodle8485 | Great Snakes | 3 | |
| Doodle8485 | Finding Flags | 2 | |
| K1Z0L | Couples | 100 | |
| starnotes | Triple DES | 60 | |
| newbie_bieee | Base64 | 10 | |
| Zvalsky | Gotta Go Fast | 40 | |
| K1Z0L | Mister Saplin's Preview | 80 | |
| K1Z0L | Pairing-Based Cryptography | 50 | |
| cyk0sure | Introduction to Isogenies | 10 |
You are now level Current level