This Advent Event was organised by BSM and the Events Team members in the CTMC Discord Server. Mapmakers were required to submit maps with the following instructions:
Have Exactly 2 Objectives in Your Map - with no bonus objectives, objectives 'split into parts' (like having to craft an emerald block), keys, or anything else not in the spirit of this rule.
Design Your Map With the Aim That It'll Take the Average Player no More Than 1 Hour to Beat - though if it ends up being a little longer, no big deal, this can be hard to estimate after all. If your map is in hardcore mode and is likely to take multiple attempts, that's fine too, but in that case your map should be shorter to compensate.
Aim to Have a Small File Size - since people will be downloading one a day after all. While datapacks are allowed, consider if you really need all of Cartographer.
Submit Your Map On or Before the 23rd Of November - submissions after this date may not be accepted. There's nothing stopping you releasing late entries separately, but they won't officially be part of this project.
Only Submit a Maximum of Two Maps Per Person - 'collab maps' don't count towards this limit.
BSM and the Events team members played the submitted maps and determined release order based roughly on escalating difficulty and gut feeling. Maps were then released between the 1st and 24th of December, spaced out as needed based on the number of submissions received.
* full name is: Fifteen minutes into this tarot reading and I'm starting to think the deck is rigged (because I just pulled The Tower again)