There's the armor, magical artifacts, weapons, etc.

However, I had a question about the Crucible unlocks: Assassin Boss/Level & Demon Boss/Level.

Since Crucible lets you create your own dungeon crawl does this just allow the player to play the unlocked level/boss,
or does it allow them to play it plus use the level design/boss in our own dungeon crawl creations to share with others?

To give an example...

In Little Big Planet there was the Metal Gear Solid DLC. After playing the level, they got parts, and
I was able to experience elements of it on a player generated level.

So I was wondering if it'd be similiar where I'd see the assassin boss/demon boss in other dungeons or if it's not possible.

I'm very torn on whether to get the Assasin Pack or Demon Pack (both bosses/levels look neat), so an answer here would be helpful. As a side note: The game looks great thus far though!

Good thinking, but still. We don't know. InXile didn't give us much information about this.

Yeah...

I could find anything, so I thought maybe this topic might get some type of official response.

*crosses fingers*