"Completing the expansion can take 3-4 hours, but with the side-missions and exploration you can easily add a few more hours. For $10, this is well worth the purchase. I don't feel bad saying that this is the best expansion Fallout 3 has, because it most certainly is. The missions have twists that you'd never expect and exploring is a blast and very rewarding. If the previous three expansions weren't enough for you to play Fallout 3 again, this one should do the trick."