What's 0xf.at?

0xf.at (or oxfat it you prefer) is a website without logins or ads where you can solve password-riddles (so called hackits).

This is a tribute site to the old Starfleet Academy Hackits site which has been offline for many years now.

Can I contribute?

You sure can. If you have an awesome idea for a hackit, send it to [email protected] and we'll gladly put it up and give you credit for it.

Levels

More infos & stats
ID    Name/Description Type Solved by Difficulty
1 Easy beginnings JavaScript 15202
19.646882704388
2 JavaScript: Do you speak it? JavaScript 8475
31.68595903551
3 Without sourcecode JavaScript 6356
28.635642126553
4 Length matters JavaScript 6152
20.14944167961
5 ASCII fun JavaScript 5320
25.416530054278
6 Color codes JavaScript 3777
29.765752132274
7 Jerry's screw-up Logic 3771
30.033314835362
8 The password field HTML 3500
30.659419433512
9 Calculations JavaScript 3080
26.795522013949
10 Variables JavaScript 3121
20.976176963403
11 Understand the algorithm PHP 3183
20.199009876724
12 Sums Mathematics 3104
23.664319132398
13 Understand the algorithm II PHP 3196
22.759613353482
14 Understand the algorithm IV PHP 2396
29.086079144498
15 The 0xf.at Enigma Logic 2565
29.899832775452
16 Understand the algorithm III PHP 2540
18.055470085268
17 regEx anyone? PHP 1680
39.673668849755
18 Morse code Programming 1400
42.567593307586
19 Telephone codes Logic,Programming 939
69.325320049748
20 MD5 cracking Cracking 570
100
21 Unscramble words Programming 378
100
22 Fast mirror Programming 635
45.343136195019
23 Easy sockets Programming 449
39.974992182613
24 Packet analyzing Analyzing 564
69.152006478482
25 WPA Cracking Cracking 166
100
26 Image offset Programming 192
76.432977176085
27 TCP bot Programming 190
85.346353173407
28 Roadtripping with 0xf.at Programming,Mathematics 156
82.036577207975
29 Heat prediction Programming 83
99.0959131347
30 Sharp eyes Programming 74
100
31 Server admin Sysadmin 122
100
32 Spellcheck cipher Programming 88
100
33 Bcrypt cracking Cracking 75
100
34 Sequence solving Programming,Mathematics 70
93.765665357848
35 Circle Mania Programming 95
50.793700396801
37 Simple WPA cracking Cracking 8
35.693136595149

Changelog

  • Level 32 has been fixed
  • Now sorted by id again
  • Level list can now be sorted. By default sorted by difficulty
  • Difficulty is now automatically calculated by the players performance
  • You can now create an account to track your progress. No passwords are stored on our servers!
  • We are now forcing https for the whole site
Visit us on reddit: /r/0xfat