User blog comment:Ttsahood/What do you think about undead nightmare/@comment-4250552-20111111222109/@comment-4778708-20111111231703

Honesty, for $10, this has great length. It has plenty of replay value (not to mention some proper online co-op). Nowadays, $10 is the price you pay just to unlock the whole game that you own. Undead Nightmare is longer than some games that you can buy for that much.