- Introduction
- Credits
- Binary Exploitation
- Cryptography
- Julius Save Me (20)
- Misaka Mikoto (50)
- I <3 SLEEPING (125)
- XOR (150)
- Hardwood Floors (200)
- H4sh3D (200)
- Yve's Fave Pic (275)
- Known Plaintext 1 (300)
- Known Plaintext 3 (300)
- All Zob's Fault (350)
- Black Table (450)
- Cave Johnson (450)
- Zob's Password (450)
- Bigger is Better (500)
- Known Plaintext 2 (500)
- Respiratory Sinus Arrhythmia (550)
- Matrices (575)
- Forensics
- Linux
- Master Challenge
- Miscellaneous
- Programming
- Recon
- Web
- Easter Eggs