Like so many games that are "free-to-play," Valve's planning on selling quite a bit of content through Dota 2. In fact, the Dota 2 store is opening for business, so players can begin customizing their heroes ASAP.

Unlike in League of Legends, all heroes will be available free of charge. "We believe restricting player access to heroes could be destructive to game design, so it's something we plan to avoid," Valve explained. Instead, the Dota 2 store will feature official Valve-designed items, and fan created items via Steam Workshop integration.

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Blizzard was none to pleased when Valve announced Dota 2, a commercial sequel to the popular Warcraft III mod, Defense of the Ancients All-Stars. Blizzard filed an opposition to Valve's "DOTA" trademark, claiming that the DOTA brand is tied to Warcraft and Blizzard. "Valve has no rights in or to the DOTA mark," Blizzard claimed. "Valve has never released, distributed, or sold any products using the mark DOTA, or, for that matter, any of the DOTA Marks. Valve did not coin the DOTA mark and has never participated in the creation of the DotA Mods."

In response, Valve claimed that Blizzard "lacks standing to bring this dispute." And apparently, Valve was right.

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