Dota 2 is an upcoming action fantasy strategy video game being developed by Valve Corporation. It is the stand-alone sequel to the popular Warcraft III custom map Defense of the Ancients. The game currently is scheduled for a full release in 2012, with a beta phase having begun during the fall of 2011. The game will be released through both retail and download by Valve’s content delivery platform Steam.
The game is comprised exclusively of session-based online multiplayer activity, with the primary objective of each match being for the teams to destroy their opposing team’s fortified stronghold called an Ancient Fortress. Each player assumes the role of a “hero”, who is given the responsibility of participating in team combat, which generally takes place along a series of lanes that connect their opposing bases, lined with defensive towers.
See bellow the system requirements and release date: