'' Halo : Reach '' was announced on June 1 , 2009 , accompanied by a trailer at the Microsoft Electronic Entertainment Expo ( E3 ) press conference . A press release announced that an invitation to the open multiplayer beta of the game would appear in 2010 . '' Reach '' is Bungie 's last game development for the '' Halo '' series . Responsibility for developing future '' Halo '' games fell to Microsoft subsidiary 343 Industries
Electronic Entertainment Expo
E3 2009
Halo: Reach