I ended up spending $20 on donuts just to get the quests done since I haven't found a guide on it yet but so far after getting mayan pieces you get: (before I start make sure lisa and homer are available to start the quests) Also I forgot the actual build time on some of these but I'll put the times that I know.
-Mayan homer. You have to do 3 of his quests to advance (need homer) -Super Collider. Costs 50 candy pieces -Start up the collider. (need lisa) -Build dark hole. (free, instant, no other use but takes up small space) -Trick or treat. (any kid, unlocks devil flanders costume and tasks)
At this point it splits with Kang and Devil Flanders
Kang story: -Build ray gun. (150 donuts, yes that surprised me, instant, also it is huge) -Shoot down alien. (3 shots) -Build alien Beacon. (kang,10 hours?) -Start alien beacon. (kang, 10 minutes) -Season humans. (kang 6 hours) -Make kang laugh for 8 hours. (kang, It may be 8 hours but I'm not sure) -Run from puny humans. (kang, 24 hours)
Devil Flanders Story: -Sign up new followers. (12 hours) -Egg 10 houses, toilet paper 10 houses
And that's where I am so far. I had just used up all my toilet paper and eggs previously on my brother so I have to wait before continuing.