Item drop system

Item drop system is a feature that allows players to obtain in-game aesthetic items. This system was borrowed from another Valve game, Team Fortress 2, and functions in the same way: after a game is finished you may receive a random item or a chest (for which you will need to purchase a key from the Dota 2 Store). Although many items are available in-game from the Store, some can only be obtained using the item drop system. There is also an option to give a random item drop to a random person on the server via purchasable "tool" from the Store called Shopkeeper's Surprise.
 * http://www.dota2wiki.com/wiki/Shopkeeper%27s_Surprise
 * http://www.dota2wiki.com/wiki/Legendary_Largesse
 * http://www.dota2wiki.com/wiki/Breathtaking_Benefaction