I'm not terribly well versed in Kickstarter statistics, but I will say this: You have too many backer packages/amounts/whatever. Yes, you want to attract as many people as possible, and don't want to turn any backers away, but there are too many choices and it is confusing. So, you should name each one, possibility eliminate some, although with backers at most of the lower levels you probably can't do that now. They are kind of named, but the format is weird. When you start getting into the higher tier ones that don't just start with ____ Badge, it gets confusing. I'd probably just change the format to:
Peasant Pack:
Peasant Badge
blah
blah1
blah2
That way it will be formatted more consistently with your higher end ones, like Clan Pack, Noble Clan back, etc. It makes it a little easier to digest.
The other thing I would focus on is driving the value of your clan packs, and such. For example $250, you are getting 8 Full Packs (normally $45 ea), plus clan registration. That's $360 value, plus a free clan registration!!! Buy now!
This would help drive the group buy mentality. However, because it's kickstarter and I can't sub-kickstart, it is harder to get multiple people (clan mates)locked in to something like this. Do I pay my buddy now? What if funding falls though, how will I get paid back?
And, like I said before, its probably too late to do this, but certain packages are well... stupid or almost redundant. A $21 dollar package vs a $25 vs $29? People will just get hung up on the differences, say they'll decide tomorrow and never donate.