Dota 2's 2015 Compendium

Valve has released this years Dota 2 International Compendium. You can buy the Compendium for $9.99, slowly receiving a plethora of exclusive items as community stretch goals are met and different treasures are unlocked. The Compendium can be levelled up by purchasing points, giving you even more items, emoticons, taunts, ability effects etc. Theres even rewards for various challenges too. All in all its a completely bonkers consumer-led bonanza. 25% of the Compendium sales go towards one of the years biggest and most exciting eSports tournaments: 2015s The International. The current prize pool is sitting just below $4 million dollars.

You can check out the full details and a list of all the rewards on offer here. The most significant reward, I think, is probably the desert terrain which will unlock at $11 million. Its nice to get a bit of visual variety every once in a while! For reference, 2014s Compendium ended just shy of that amount ($10.9 million). Easy peasy.