If you've finished the hold, you can see how many secret rooms there are on each level, and if you've beaten them.
A trick to find rooms yourself:
The Hints and Solution forum lets you search for a room to get hints for it. There's an option to move to coordinates outside the known rooms, so you can use that to tell if there's a room there.
Here I selected 1N2E then clicked "
East"
(to 1N3E), then "
Check Hints"
. If there's a room there it'll list existing room topics or give you the option to create a new topic (as in my pic) If there's no room, then it'll say "
There's no room at these coordinates"
So if you search around the outside of the level, you'll probably find where the room is - then you can search harder in the adjacent rooms to try and spot secret walls, etc.
This will be less helpful if the room isn't reached via secret wall (e.g. JtRH:L10:1S) or if the level isn't contiguous (e.g. TCB: Twenth-Fifth Level: Entrance (not a secret room, but the two rooms in that level aren't next to each other)
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[Last edited by Rabscuttle at 07-25-2021 03:27 PM]