53 rooms written up so far: 28 easy, 19 medium, 4 hard, 2 unrated. Each writeup follows the same shape: summary, enumeration, foothold, privilege escalation, and the ATT&CK techniques involved.
| Room | Difficulty | OS | Techniques |
|---|---|---|---|
| 0day | Medium | Linux | 3 |
| Agent Sudo | Easy | — | 5 |
| Anonymous | Medium | — | 4 |
| Anthem | Easy | Windows | 5 |
| Atlas | Medium | Windows | 5 |
| Attactive directory | Unrated | Windows | — |
| Basic Pentesting | Easy | Linux | 3 |
| Billing | Medium | — | 3 |
| Blog | Medium | Linux | 4 |
| Blue | Easy | Windows | 4 |
| Bookstore | Medium | Linux | 4 |
| Bounty Hacker | Easy | Linux | 5 |
| Break out of the Cage | Easy | — | 4 |
| Bsidesgtthompson | Easy | — | 4 |
| c4ptur3th3fl4g | Easy | — | — |
| Cat Regex | Unrated | — | — |
| Cheesectfv10 | Medium | Linux | 5 |
| Chillhack | Easy | Linux | 5 |
| Chocolate Factory | Medium | Linux | 4 |
| Couch | Easy | Linux | 5 |
| Cyberlens | Easy | Windows | 3 |
| Dreaming | Medium | Linux | 4 |
| Easy peasy | Easy | Linux | 4 |
| Gaming Server | Medium | Linux | 5 |
| Glitch | Easy | — | 4 |
| Golden eye | Hard | Linux | 5 |
| H4cked | Easy | Linux | 5 |
| Hijack | Medium | Linux | 5 |
| Ignite | Easy | Linux | 4 |
| Internal | Hard | — | 5 |
| Kenobi | Easy | Linux | 4 |
| Library | Easy | Linux | 4 |
| Linux Strengthening | Medium | — | 4 |
| mKingdom | Easy | Linux | 5 |
| Mnemonic | Medium | Linux | 5 |
| One Piece | Hard | Linux | 5 |
| Plotted TMS | Easy | Linux | 4 |
| Psychobreak | Medium | Linux | 4 |
| Pyrat | Medium | — | 4 |
| Retro | Hard | Windows | 3 |
| Reverselfiles | Easy | Linux | — |
| Rfirmware | Medium | Linux | 3 |
| Simple CTF | Easy | Linux | 4 |
| Smaggrotto | Easy | Linux | 5 |
| Source | Easy | Linux | 3 |
| Startup | Easy | Linux | 4 |
| Tokyo ghoul | Medium | Linux | 4 |
| U.A. High School | Easy | Linux | 4 |
| Ultratech | Medium | Linux | 5 |
| Vuln University | Easy | Linux | 4 |
| Wgel CTF | Easy | Linux | 4 |
| Wonderland | Medium | Linux | 4 |
| Year of the rabbit | Easy | Linux | 4 |