A few months ago, 343 Industries announced at RTX the efforts to bring the remaining Halo FPS Xbox 360 titles to the Xbox One Backwards Compatibility program. Today, Halo: Combat Evolved Anniversary, Halo 3, Halo 3: ODST and Halo 4 join Halo: Reach in the program and are available for download now. Halo CEA only includes the campaign portions of the game since the multiplayer experience is already available with Halo: Reach backwards compatibility. Although available prior to today’s release, all downloadable content for these games are free, including on Xbox 360. Here’s the links to the digital versions of each game if you’ve either lost your discs or don’t want to rely on them: Halo 3, Halo 3: ODST Campaign Edition, Halo 4, Halo: Combat Evolved Anniversary.