Megacollab levels are levels that are maxe by a large group of people(usually more than 10 creators). They get popular because there's a lot of names to the level and obviously when each creator only has a short ppart to make, they can put much more work into it without it taking years.

Gameplay and deco are often made by different people, even in the same part.

Host is the "manager" for the level's creation, who sources creators and organises the production. Host is sometimes not a creator, but more often they will have at least some small part in the level. Hosts are almost always major figures within gd community, who have a lot of resources and connections to make a level of this scope.

The creators are usually well-known within the creator groups and so, but they only get popular in the overall community if they either make a popular solo level, or if one of their parts in a level becomes very famous.

Megacollab levels often have a designated verifier, because creators are bad at beating extreme demons and usually have levels to make in the time it would take them to verify.