Toppledge
6,000,000

I don't know if they'll reach all the new stretch goals, but I'll risk to say they'll reach at least 8 millions in money.

And the best part is that money is just pocket change for Valve. They just want to show the format (esports / compendium / microtranscations) is viable so they can make even MORE money with Steam as other games follow the format.