The huge room in Seattle went silent, following every movement that unfolded on the huge screen. Thousands were sitting, breathing hard, and millions more were cheering around the world over the internet. It was the grand final of the world championship, more than 2 million dollars were at stake and unexpectedly one of the teams started an explosive turn. The audience vibrated, drowning out the breathless voice of the narrators.Within seconds, the Alliance took advantage of the impossible, reversing a situation that could upset any other team. The next 20 minutes were filled with tension, and a small error in Na'Vi's position was enough for the opposing team to delay its defense and destroy, even with great resistance, the most important construction of the game. Players and fans celebrated one of the most exciting moments in the history of DotA 2, which, until then, had come a long way to that point.The DotA concept was not born at Valve, much less the creators would imagine that they would be creating a new genre within games. With roots in Starcraft, the first games with the current molds of the MOBA (Massive Online Battle Arena) appeared in Aeons of Strife, a map created by fans and later ported to Warcraft III, receiving the main features that today DotA 2 presents.DotA Allstars, bringing together versions created by multiple players, has become increasingly successful. More than seven years passed before Valve started the project to free the game from the limitations of Warcraft III, updating the graphics and offering new features that until then were not possible in the Blizzard game.DotA 2 did not grow with a very intuitive proposal: two teams (Radiant and Dire) face each other on a map with three routes, and each player will choose a hero (among the 105 available) to be part of this advance. On the way, players will have to pass through enemy troops, towers and heroes, seeking to destroy the Ancient enemy located at the end of the routes. In this way, the player will be able to buy items and evolve skills like a typical RPG, but in a classic superior view of strategy games.Until arriving free and definitely on Steam, the concept behind DotA had already come a long way and conquered thousands and thousands of fans. In this new stage, Valve brought more than resources to make life easier for players: it sought to improve the game to keep it challenging and stimulating for decades.DotA 2 is a game that may not please everyone, but that should be experienced by everyone. Its learning curve tending to the infinite captivates many players to continuous improvement, and its innovative formula and filled with elements of RPG and strategy are the characteristics that bind several players who seek an always new and unique game.The fine line between competition and fun can disrupt the relationship between some players, after all, we are dealing with a game that needs cooperation to achieve success. But when these two elements align in a tuned way, DotA 2 becomes a complete and rewarding experience, worthy of the best matches ever witnessed in your life.