I wasn't playing DF during Lent, but I felt bad about how everybody died when I took my turn. The fort had a lot of promise and I'd hate to see it end there. So I've gone back to the zip file and re-started my turn, whether anyone's interested or not!
Reviewing the situation at the beginning of the year:
We are under siege by the undead with multiple necromancers on-site. It took me a while to figure this out last time, but the only reason we are alive is because there's a tree growing in our entryway. The previous architects designed the entrance as two levels of ramps down to a winding labyrinth that leads right to an ordinary unlocked door. Currently a tree is growing in the labyrinth. I'll have to remember not to cut it!
These beautiful rooms in the upper fort are indefensible sieves. Do you notice the twelve hatch covers in that round room? Those are up/down stairways so there's actually 26 different exits an intruder can take from that room if he gets through. This is no place to mount a defense. The floor above this one is similar. See the drawbridge on the left? When lowered, it closes off the ramp down to the labyrinth and replaces it with a road to the trade depot. This will be the beginning of our grand entrance (the passage at right goes all the way down to the caverns, in a premature anticipation of our conquest of them). But it is also an indefensible sieve. I like the man-made cave on the left, I'm calling it "the grotto".
Finally, my predecessor began the workings of a Lower Whimcrafted in the first cavern. The problems here are three: (1) no safe way to get to/from the lower fort: the indicated ramps lead to a winding twisting route through the caverns up to the upper fort; (2) no way to close the door to visitors; (3) too many damn dimple cups in the food stockpile [edit: the actual problem was that barrels/pots were forbidden from the food stockpile]. My first run-through, all of our meat spoiled because there wasn't any space in the stockpile.
My plans:
1. organize the military
2. re-architect the upper fort to be a cylinder of blood with no exits. nice round rooms for our military to kill invaders in.
3. built a safe, vertical connection between the lower and upper forts.
4. tame a little bit of the cavern at a time, rather than assuming we'll have an idyllic coexistence with all the creatures of the dark
5. use the grotto and the cavern as substitutes for "outdoors" until we can figure out how to deal with necromancers!