It's a little unclear what Contribution is at first in Crimson Desert—you do a good deed and suddenly you're earning points that appear in a little bar on the screen. At first it looks like some kind of karma or faction rep system, and while the latter is kind of true, it doesn't properly reflect what you can do with Contribution.
Below I'll explain what you can use Contribution for, where to find the shop that'll let you do that, plus the various ways you can either gain or lose this currency.
