UESP Forums

Are Dragonbone weapons included in Dragonborn, or are they still limited to Dawnguard?

Limited to Dawnguard.

Once you have Dawnguard, you can use them anywhere.

The scripts for Dragonbone weapons are present only in the Dawnguard download. Once you've downloaded Dawnguard, they become available everywhere, just as Stahlrim, Bonemold, Chitin, and Carved-Nord items are exclusive to Dragonborn but after downloading the DLC you can make them anywhere.

So yes, you have to haveDawnguard in order to get Dragonbone weapons.

I believe some will appear in random look on Solstheim if you have Dawnguard installed, but I haven't seen any yet. I've found some Stahlrim gear in random loot, but I'm high level.