| Name | Points | Tags | Writeups | |
|---|---|---|---|---|
| Musical Stegano | 342 | steganography | 2 | |
| tiny runes | 137 | game reversing | 3 | |
| Naughty List | 451 | web | 2 | |
| ChristmaSSE KeyGen | 271 | rev math | 3 | |
| GrinchNet | 581 | crypto re | 1 | |
| Unmanaged | 581 | dotnet pwn | 3 | |
| Sudo Sudoku | 231 | misc sudoku | 3 | |
| Snowflake Idle | 482 | web crypto | 2 | |
| Northpole Airwaves | 326 | forensics gnuradio | 2 | |
| Summer ADVENTure | 305 | misc rev crypto network | 1 | |
| Challenge Zero | 134 | crypto re | 4 | |
| Lost in Maze | 537 | misc | 2 | |
| Got Shell? | 319 | web linux | 3 | |
| Gr8 Escape | 691 | pwn | 1 | |
| Battle of the Galaxies | 2100 | misc | 1 | |
| Impressive Sudoku | 350 | pwn math | 1 | |
| 7110 | 58 | misc programming keylogger | 5 | |
| Naughty or Nice V2 | 389 | pwn crypto | 3 | |
| Self-Replicating Toy | 350 | rev | 2 | |
| Heap Playground | 368 | pwn heap | 3 | |
| Santa's Signature | 174 | signature rsa | 6 | |
| mooo | 98 | perl web cowsay code-injection | 5 | |
| Easter Egg 3 | 10 | qrcode aztec qr fun | 3 | |
| Genetic Mutation | 142 | misc pwn | 5 | |
| Easter Egg 2 | 10 | fun web | 2 | |
| Easter Egg 1 | 10 | fun web | 2 | |
