Well, right before jumping into Level 8, I had to catalog everything from Level 7 to make sure nothing was overlooked or duplicated. I found I'd placed an identical new major magical item in two different rooms. Ooops!
So I swapped one out for something else, problem solved. Anyway, the point I'm getting to is that,
for Level 7 alone, we have the following new material:
42 fully developed Core Rooms (70 if you count sub-rooms such as 33A, 33B, 33C as individual rooms, which they are)
26 fully developed Areas of Interest
19 new magic items (including 6 new tomes)
14 new monsters
12 new spells
5 new NPCs
Level 8 likewise will have:
42 Core Rooms (59 if you count Rooms #5A, 5B, 5C, etc as individual rooms)
26 Areas of Interest
I have no idea how many new monsters, spells, magic items, etc will appear on Level 8, but assume at least as many as on Level 7.
Of course, all the new spells and monsters from the entire 3-level box set will be grouped together in one chapter (or in the case of monsters, on MC monster sheets) as they were in the original box set.
So far, the plan for the sub-level included in this set is going to be just 21 developed rooms and 26 areas of interest (since it's a sub-level, not a full level). If we go with that, then here is how it looks:
Level 1 = 42 core/26 areas of interest (68 total)
Level 2 = 42 core/26 areas of interest (68 total)
Level 3 = 21 core/26 areas of interest (47 total)
Total: 183 fully developed rooms.
If we count sub-rooms, which we should because technically they are developed enough to count as individual rooms on their own (ie Room #5A, 5B, 5C, etc), then we end up with (and keep in mind that I have not yet assigned/numbered the rooms on the sub-level map, so there may be even more rooms) a whopping
228 fully developed rooms for
Ruins of Undermountain III: The Deadly Levels!
It boggles the mind, it really does!
