Forum:Finished game without DLC, now what?

So I decided to play through to the end of Fallout 3 with no DLC installed, just to see the original ending that everyone hated. Now I'm about to install the DLCs and am wondering how far I should backtrack? I have saves at the beginning and end of most of the later quests such as visiting Vault 87, Raven Rock, the Citadel and Project Purity, and my quicksave is in Project Purity a split-second before Sarah Lyons asks me which one of us should activate the purifier.

I'm assuming my quicksave is too late, but I'm wondering if I have to do Take it Back! all over again (for example)? The Broken Steel article isn't very clear about it. --HunterZ 00:54, April 17, 2011 (UTC)

Update: Loaded my quicksave with the DLCs installed and was able to activate the purifier and then wake up in the Citadel two weeks later. Cool. --HunterZ 16:31, April 17, 2011 (UTC)