The Arcadiavers Is a multiverse that is based on the same principle as the first installment Wonders of Arcane.
Meaning most will come from the same realm and dimension as Maltazar using the same Magic. the stories do not have to be at the same time or dimension but have to come from the same dimension called Cluvia on the planet called Ulmides, with the same lore.
Main stories will work at a different time and different MLP Dimension but have a connection to the other stories somehow being it a spin-off or a side story.
Canon Stories will be stories that are canon to The Arcadiavers
Non-canon are stories that are not accepted as canon or are just joked or fun made stories based on The Arcadiavers
You can write your own story but only I can say if it is canon or not.
It does not have to be connected to the same world and the other main/canon stories it can be your own world/story it just has to use what is already canon to The Arcadiavers lore
I will be making a list to what is canon to The Arcadiavers
