Furthermore, you then have the flexibility of embarking on the DLCs whenever you want.Īs for when to play the DLCs: Broken Steel is an extension of the main quest, and can only be accessed after you finish the main quest, though some of its side content (such as new enemies) can show up before that.
There's no penalty to having them installed at the very beginning, while some of them will give you tangible benefits, such as Broken Steel raising the level cap.