Dota 2 , Valve's wildly successful MOBA, now runs exclusively on the Source 2 client. Previously, Dota ran on the original Source engine.

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The full upgrade from Source to Source 2 makes Dota 2 the first ever game to fully use the Source 2 engine. While the game remains the same, but the switch to Dota Reborn brings massive changes to the UI and game modes. Dota Reborn first went into beta back in June, and Valve has been announcing new features since. One such feature, a 20-player Dota 2 mode , was revealed at this year's The International competition.Valve first revealed the Source 2 engine at GDC 2015. Source 2 is free to content developers and replaces Source, which first appeared in 2004 in Counter-Strike: Source, and was used for such titles as Half-Life 2 all the way up to modern titles like Dota 2.The updated Source 2 version of Dota 2 is live and available right now. If you want to change things up even further, Adult Swim began offering a Rick and Morty announcer pack in August for $8 USD. The announcer pack replaces the default and mega-kills announcer found in vanilla versions of the game with the titular characters from Adult Swim's Rick and Morty.

Seth Macy is a freelance writer who just wants to be your friend. Follow him on Twitter @sethmacy , and MyIGN at sethgmacy , or check out Seth Macy's YouTube channel.