| Date | User | Challenge | Score |
| Waffleman | Confusion through Substitution | 25 | |
| hazelnut_maeve | Finding Flags | 2 | |
| Mukhz | Finding Flags | 2 | |
| tode05 | Great Snakes | 3 | |
| HOA | Keyed Permutations | 5 | |
| sayyidabin | Hex | 5 | |
| duckpancakes | Triple DES | 60 | |
| CyberHero1 | Bytes and Big Integers | 10 | |
| lonely | Finding Flags | 2 | |
| BOHDANYATCKOV | Factoring | 15 | |
| kachan | XOR Starter | 10 | |
| ANDY_NOAH | XOR Properties | 15 | |
| marvin231245 | Finding Flags | 2 | |
| 0xluffy | XOR Properties | 15 | |
| lvcv4y | Base64 | 10 | |
| kachan | Bytes and Big Integers | 10 | |
| Foul | Favourite byte | 20 | |
| lvcv4y | Hex | 5 | |
| Waffleman | Round Keys | 20 | |
| lvcv4y | ASCII | 5 | |
| lvcv4y | Great Snakes | 3 | |
| lvcv4y | Finding Flags | 2 | |
| rootkiddoreborn | Finding Flags | 2 | |
| Foul | XOR Properties | 15 | |
| luthfiialghazali | Great Snakes | 3 | |
| MartinDebrah | XOR Starter | 10 | |
| masont | XOR Properties | 15 | |
| Happening0322 | Great Snakes | 3 | |
| ahmad_mudzakkir | Structure of AES | 15 | |
| MartinDebrah | Bytes and Big Integers | 10 | |
| Happening0322 | Finding Flags | 2 | |
| Waffleman | Structure of AES | 15 | |
| Vram | Structure of AES | 15 | |
| MartinDebrah | Base64 | 10 | |
| Kayla_Olivia | You either know, XOR you don't | 30 | |
| MadRat_0 | An Exceptional Twisted Mind | 125 | |
| 0xluffy | XOR Starter | 10 | |
| Melek | Modes of Operation Starter | 15 | |
| MartinDebrah | Hex | 5 | |
| herbertgarrison | Modes of Operation Starter | 15 | |
| kxld | Resisting Bruteforce | 10 | |
| BOHDANYATCKOV | RSA Signatures | 25 | |
| masont | XOR Starter | 10 | |
| Aritsi | Greatest Common Divisor | 15 | |
| MartinDebrah | ASCII | 5 | |
| Cats_are_cool | Hex | 5 | |
| BOHDANYATCKOV | RSA Decryption | 20 | |
| j3rryv1 | Base64 | 10 | |
| martacbraga | Gaussian Reduction | 50 | |
| BOHDANYATCKOV | Private Keys | 20 |
You are now level Current level