You gave me five dollars. Thank you. You, like everyone else, will get to play the game when I put it on the internet. Congratulations. You are roughly five times more beautiful than the person who gave me a dollar. Do not tell them I said that.
I cannot believe you are giving me ten dollars. Thank you. Refer back to the boilerplate from the previous two reward tiers to get a feel for your reward. I will make a game. You will get to play it. I will deliver one (1) warm feeling directly to the center of your heart (metaphysical presence of heartspace not guaranteed.) You are beautiful, also.
This tier has a reward outside of merely getting what the people of the world will get for free--I will write you a letter and mail it to you. I will include a drawing; it will probably be bad. I am not good at art. Also, the price of a stamp will probably be like $35 by the time I write the letter, so I'm taking a loss here. You are a beautiful and more materially rich person than the previous tiers.
In addition to getting the game that I will release into the wilds of the internet (TM) for free, I will also mail you one random comic book that I no longer want. Additionally, I will write you a letter, which will contain between one (1) and three (3) drawings, the majority of which will be unappealing. I will probably just stuff an envelope full of random things and mail it to you, honestly. You are more materially wealthy, and therefore better, than all of the tier participants previous to this one.
You did it. We can all go home now. Thank you for making this work. My game will probably be better. I will stuff a slightly larger envelope full of things I don't want anymore. This could include old electronics cables, graphic novels, "real" novels, a personalized letter, a form letter, and the scribbled notes I make on the stolen hotel pad that serves as my continual design document. You are a Kickstarter one-percenter. You are the most beautiful person.