Geas

Would it be possible to ...

... have a hidden exit from a wilderness room, which can send the player to 2 or 3 different locations, or nowhere at all, maybe depending on some lore skill?

... generate rooms "on the fly", randomly, when a player enters?

... store the seed number for that room, so that the player may come back to that room, if he makes his skill roll, e.g.?

I think all may be possible. Do you mean extra "hidden" rooms depending on one's lore skills?

They would however have to be somewhat accessible to others as well, somehow.

Arogarn wrote:Would it be possible to ...

... have a hidden exit from a wilderness room, which can send the player to 2 or 3 different locations, or nowhere at all, maybe depending on some lore skill?

Yes.

Arogarn wrote:... generate rooms "on the fly", randomly, when a player enters?

Yes, you can generate rooms on the fly. Certain areas already do (for example the unicorn valley). It doesn't always make sense, though.

Arogarn wrote:... store the seed number for that room, so that the player may come back to that room, if he makes his skill roll, e.g.?

Yes, but only within two reboots. Otherwise it gets complicated.