The idea of 100% has been raised a few times. The main problem is there's just so much stuff. If it's -really- 100% then you would need to get all items, including 1/128 drops. While it's certainly doable, it would probably take a really long time. Even if you allowed glitches/manip in a 100% run, it would still take forever. Sword of Kings alone would likely take anywhere from 1-3 (or more) hours to find.

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