High Quality Content by WIKIPEDIA articles! Halo: Combat Evolved Anniversary, also referred to as Halo: Anniversary or Halo: CEA, is a first-person shooter video game set in the Halo universe and is an enhanced remake of Halo: Combat Evolved.Microsoft announced the game alongside Halo 4 at the 2011 Electronic Entertainment Expo. The game reached gold status on October 15, 2011, and was released a month later on November 15, 2011, the 10th anniversary of the original title`s launch.