Update: It appears that a key is still required to play Dota 2, with only the tutorial and Dota TV freely accessible. Thanks @Cyborgmatt.
Original story: Players yet to give Dota 2 a try can now do so without the need to source a beta key, reports Gosu Gamers.
Until this point Valve had been carefully handling access to the game by dishing out beta keys - albeit keys which could be purchased from the Steam Marketplace for pennies.
Gosu Gamers confirmed that gamers from all territories (except China) can access the game without a key.
For new players there's also the addition of a trailer which plays before the main menu loads.
For its part, Valve hasn't confirmed the game has exited beta, with the official launch set for this summer.
Source: Gosu Gamers