-The Basis-

Alright, creating a level would be a great idea considering the amount of people who would pay to make their own level ideas a reality. It would also kill a lot of time while waiting for energy to fill as well.

-The Levels-

Now, to gain your own level to customize you would have to pay a certain number of energy and/or crowns. When you are making your own level you could choose your own theme (Fire, Poison, Ice, etc.) and also insert enemies, boxes, gates, battle rooms, and some other cool stuff to use.

-Hiring Enemies-

Now to be fair you can't just put an enemy somewhere. (I mean, what kind of enemy works for free?). No, you have to pay crowns to put an enemy in a certain spot such as making a zombie wait underground or have a gremlin stand next to a box. The fee's depend on what kind of enemy you put into the level. (Such as a Trojan would cost more than a Devilite.)

-Level Admission-

Since you will most likely be getting some materials off some of the enemies you kill, you will have to pay a fee to enter the level you make. (Along with friends of course.) to make sure that this kind of material gaining isn't abused.

-In the end-

I think this would be a great addition to Spiral Knights. It would be fun, and imaginative. Of course, this is just a suggestion and I hope to get some good remarks off of it.