1/3
2 Years of Service
At least if they're NOT giving the dev money. If you're giving the dev $100 or so, then yes, you can get some influence in the story development, or maybe a special character...but that should be left up to the dev.Reasons why the player base shouldn't have so much influence over the story.
You know what tipping $10 at my ramen shop gets you? NOTHING.

