How’s this for a first isometric map? I found a nice way to print isometric paper on iOS devices, will have to put up a how-to later.
So, for some ideas for this map:
The top level has an arcane circle. Maybe PC’s find a portal here? Or maybe they are unwittingly sent here by an evil cult in order for the PCs to unknowingly set off a blood summoning?
On the second levels are sacrificial blood pools. Populate these two levels with some big baddies. I mean big, as in at least large in size. The bigger the bloodier!
Then, the idea is that their blood channels down through the tunnel all the way to the bottom where it fills a sacrificial cult alter. And then what happens??? Nothing good, I’m sure…