ToME: the Tales of Maj'Eyal

v.3.9.38
Dreadfall Lvl 6

I'm in a vault with multiple "rooms". I can see loot in the other rooms and doors leading to the other rooms; but there's no access door from the room I'm in to the other rooms.

I've dug all around the vault and rooms and found no "diggable" blocks.

What am I missing?

I'm assuming that you've tried the diagonals. And I can't see what's beyond that door to the south, but I think I recognize that vault. Some of the rooms are accessed from other walls around their edges. But in this case, I suspect you need to go around and walk through that door to the north of the room.

some of the diggable walls can be tricky to find. I wish they were a little more obvious visually. Regardless, a good teleport rune will also get you out of that particular trouble

If you mouseover the walls you'll find 'diggable' on one or two.