Yesterday, I believe, I had a single, doorless room being generated; today, I have a full, randomly-generated map of rooms, joined by doorways, and a special "starting room" for standard levels.
There's still a lot to do: enemies, items, "special" rooms (such as the starting and ending rooms), sound and music, various level objects, bug-fixes and more. Little time, and much to do!
(No new screenshots today: I'm tired, and the changes are sufficiently minor on the visual side that I deem it not worth the bother.)