| Date | User | Challenge | Score |
| hamu | You either know, XOR you don't | 30 | |
| pwnthegame | Structure of AES | 15 | |
| B0untyHvnt3r | Finding Flags | 2 | |
| SISroot | Paper Plane | 120 | |
| SISroot | Beatboxer | 150 | |
| zsnafu | Point Addition | 30 | |
| hamu | Favourite byte | 20 | |
| s1347006 | Finding Flags | 2 | |
| hamu | XOR Properties | 15 | |
| kevinho27 | Monoprime | 30 | |
| sixsquareAI | Real Mersenne (Zh3r0 CTF V2) | 0 | |
| J_i_n | Finding Flags | 2 | |
| kevinho27 | Factoring | 15 | |
| marcofireball84 | Privacy-Enhanced Mail? | 25 | |
| kevinho27 | RSA Signatures | 25 | |
| SISroot | Oh SNAP | 120 | |
| kevinho27 | RSA Decryption | 20 | |
| SISroot | Dancing Queen | 120 | |
| Hexerei | Flipping Cookie | 60 | |
| SISroot | Logon Zero | 80 | |
| desiasd | Structure of AES | 15 | |
| kevinho27 | Private Keys | 20 | |
| kevinho27 | Euler's Totient | 20 | |
| mileybis21 | Passwords as Keys | 50 | |
| SISroot | Vote for Pedro | 150 | |
| desiasd | Resisting Bruteforce | 10 | |
| sixsquareAI | Oofbleck (Firebird Internal CTF) | 0 | |
| James_Lee | Base64 | 10 | |
| zsnafu | Point Negation | 10 | |
| James_Lee | Hex | 5 | |
| mileybis21 | Modes of Operation Starter | 15 | |
| UMAyuma | Manyprime | 40 | |
| Mugac | You either know, XOR you don't | 30 | |
| LadiesMan217 | Finding Flags | 2 | |
| SISroot | Bespoke Padding | 100 | |
| zsnafu | Background Reading | 5 | |
| IgnAto | Base64 | 10 | |
| DEBLEXER | Favourite byte | 20 | |
| SISroot | Let's Decrypt | 80 | |
| dwpnt | You either know, XOR you don't | 30 | |
| SISroot | Let's Decrypt Again | 175 | |
| sixsquareAI | Key Backup Service 2 (HKCERT CTF) | 0 | |
| James_Lee | ASCII | 5 | |
| dwpnt | Favourite byte | 20 | |
| dwpnt | XOR Properties | 15 | |
| SISroot | Null or Never | 100 | |
| areyesm | Great Snakes | 3 | |
| Mugac | Favourite byte | 20 | |
| SISroot | No Way Back Home | 100 | |
| notnotnotme | Hex | 5 |
You are now level Current level