First edition. Santa wants to run a weather machine that is powered by stars. We're helping him by collecting stars for solving puzzles. Which are mostly related to presents, elves and reindeers. There's no big story arc (some short ones though) and the puzzles are generally easier then in the later years, but you can still find some hard ones. I struggled with day 22 and only solved day 19 with help.
- Day 1: Not Quite Lisp
- Day 2: I Was Told There Would Be No Math
- Day 3: Perfectly Spherical Houses in a Vacuum
- Day 4: The Ideal Stocking Stuffer
- Day 5: Doesn't He Have Intern-Elves For This?
- Day 6: Probably a Fire Hazard
- Day 7: Some Assembly Required
- Day 8: Matchsticks
- Day 9: All in a Single Night
- Day 10: Elves Look, Elves Say
- Day 11: Corporate Policy
- Day 12: JSAbacusFramework.io
- Day 13: Knights of the Dinner Table
- Day 14: Reindeer Olympics
- Day 15: Science for Hungry People
- Day 16: Aunt Sue
- Day 17: No Such Thing as Too Much
- Day 18: Like a GIF For Your Yard
- Day 19: Medicine for Rudolph
- Day 20: Infinite Elves and Infinite Houses
- Day 21: RPG Simulator 20XX
- Day 22: Wizard Simulator 20XX
- Day 23: Opening the Turing Lock
- Day 24: It Hangs in the Balance
- Day 25: Let It Snow