With the release of the Halloween 2016 update for The Sims Freeplay comes the return of the Night of the Candy Monsters Quest. This 9 day quest, if you haven’t already completed it, unlocks a Halloween costume pack including a Witch, Ghost, Pirate, Zombie, and more.
Although the quest is 9 days in total, it is actually split into parts, which must be completed in a certain amount of allotted time.If you complete the entire quest in 9 days you will receive the costume pack; however, you can also receive a prize of different costumes for different age Sims when you complete each part.
Below is a walkthrough for each part:
Part 1 (Fawn costume for Adult Female / Frankenstein costume for Adult Male)
Part 2 (Astronaut costume for Toddlers)