The studio experimented with mobile devices but gave up because of their lack of power
The game was also used to experiment with tablet development, according to Valve's Gabe Newell, who told Kotaku that his team tried to bring the strategy game to certain mobile devices but couldn't, at least for now, because of their lack of power.
"We were working on getting Dota 2 running on some tablets," he said. "That ended up being kind of a disappointment. But the good news is that tablets are getting faster very quickly, so I think we'll get the kind of performance we want and other game developers want in the near future."
Newell expressed his love for tablets in the last year, so it's not surprising to hear that his team experimented with such devices.