CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins82% CONFIDENCEOverall confidence: 82%How well the pin's source and references back up its dates.Weighted average of how firmly 4 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or betterKotaku[1] reported the official launch on 9 July 2013, Wikipedia[3] gives 9 July 2013 for the Windows release (18 July for OS X and Linux), and Steam's store page lists 9 Jul 2013.
Valve took Dota 2 out of its two-year beta and released it free to play on Steam on 9 July 2013. It is Steam's second most-played game this week, with a peak of 790,564 concurrent players in the week to 2 October 2026.
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