Steam generally has around 3.5 to 6 million concurrent users at any time. Dota 2 usually pulls around 500k users. You can check Steam user counts here (http://

Steam generally has around 3.5 to 6 million concurrent users at any time. Dota 2 usually pulls around 500k users. You can check Steam user counts here (http://store.steampowered.com/stats/ http://store.steampowered.com/stats/). Not sure how console user bases stack up, but that's a pretty wide base.