How to move forward
One of three things, every level, chosen by whoever wrote it:
- Click something.
- Type a username and a password.
- Change the address.
Some levels want a word, a number, a grid or a single exact pixel. If none of those fit, the answer is probably already on the page and you have not looked at it properly yet.
The address is the game
Only the first address is a number. Everything after it looks like 6251chapter or 3417forbidden — four digits that mean nothing, and a word that points at how the level works.
So there is no way to walk to the end. You cannot type /l/100, because no such address exists, and you cannot guess the others because the digits are not a sequence. You get each address by solving the level before it.
The word at the end of an address is a handrail, not a hint: it names the tool, never the answer.
Use the browser properly
This game is played in a browser and it expects you to use one properly. The developer tools are part of it.
- View source, on nearly every level. Comments, attributes and stylesheets all carry things the page does not print.
- The console, on several levels, prints a clue on load in an encoded form. You have to evaluate it, not read it.
- The address bar, on every level that is a path level.
- A terminal, if you want one. Several levels are about the bytes inside a file rather than the picture it draws, and strings, file and xxd all work.
Three rules
One. The number on the level is the true number. It never lies, it never skips and it never sends you backwards.
Two. Nothing you do here is sent anywhere. Progress lives in this browser only. There is no account, no server-side save and no leaderboard. Clearing your browser data clears your run.
Three. Hints exist on every level and there are as many as you want. They are counted on the certificate at the end, because it is interesting to see, not because anything depends on it.
What a hint is
A hint says which tool to use, not what to type. There is no budget, and nothing is lost by taking one on every level — the total is only printed on the certificate at the end, out of interest.
If you would rather have all hundred written out in full, the key is at /key. It is not linked anywhere, on purpose.