Halo Franchise

Many products and ideas that are set in the Halo Universe contain the word, or are titled, "Halo", named primarily after the Halo Array, a massive ring-shaped space installations.

Video Games

 * The Halo Trilogy - The original first-person shooter trilogy.
 * Halo: Combat Evolved - The first Halo video game.
 * Halo PC - The Windows and Mac version of Halo: Combat Evolved.
 * Halo: Custom Edition - A free, unsupported upgrade to the Windows part of Halo: Combat Evolved.
 * Halo 2 - The second Halo video game.
 * Halo 2 Vista - The Windows Vista version of Halo 2.
 * Halo 3 - The final installment of the FPS series.
 * Halo 3 Beta - The beta stage of the third installment.
 * Halo 3: ODST - The expansion pack/spin-off of Halo 3.
 * Halo 3: Mythic - The expansion pack of the Halo 3 multiplayer introducing three new maps.
 * A series of Halo spin-off games.
 * Halo Wars - The RTS version of the Halo series developed by Ensemble Studios.
 * Halo Wars: Limited Edition - The limited edition of the RTS version of Halo. Includes several rare pieces of merchandise.
 * Halo: Chronicles - A Halo game developed by Peter Jackson and Wingnut Interactive in association with Bungie. As of 2009, the game has been confirmed as cancelled.
 * Halo: Reach - a prequel to Halo: Combat Evolved, and is set to be out sometime in Fall 2010.
 * Halo: Reach Multiplayer Beta - The upcoming beta stage of the installment included with Halo 3: ODST. It will be available on May 3, 2010.

Video Game Levels

 * "Halo" - The second level in Halo: Combat Evolved.
 * "Delta Halo" - The eighth level in Halo 2.
 * "Halo" - The tenth and final level of Halo 3.

Films

 * Halo: Landfall - A series of live-action short films made to promote the release of Halo 3.
 * Halo Movie - The Hollywood feature production. It has been delayed indefinitely, and executive producer Peter Jackson and director Neill Blomkamp have both confirmed that their involvement has ended.
 * Halo Legends - A series of anime shorts set in the Halo Universe.

Novels

 * Halo: The Fall of Reach - The book explaining what happened before Halo: Combat Evolved, by Eric Nylund.
 * Halo: The Flood - The novelization of Halo: Combat Evolved by William C. Dietz.
 * Halo: First Strike - The book explaining the SPARTAN programs.
 * Halo Box Set - The box set featuring the three first Halo Novels.
 * Halo: Ghosts of Onyx - The book introducing Onyx and the SPARTAN-III Program.
 * Halo: Contact Harvest - The prequel to the Halo saga set at the beginning of the Human-Covenant War.
 * Halo: The Cole Protocol - The latest novel that revealed the location of the Spartan Gray Team.
 * Halo: Evolutions - Essential Tales of the Halo Universe - A collection of Halo stories on various subjects.

Music

 * Halo: Original Soundtrack
 * Halo 2: Original Soundtrack
 * Halo 3: Original Soundtrack
 * Halo 3: ODST Original Soundtrack
 * Halo Wars Original Soundtrack
 * Halo Legends Original Soundtrack

Books

 * Halo: Combat Evolved: Sybex Official Strategies & Secrets.
 * Halo Graphic Novel - The comic book based on the Halo Universe.
 * The Art of Halo - The behind-the-scenes art book, focusing on the evolution of Halo 2.
 * Halo 2: Special Collector's Edition Manual - The manual that comes with the Halo 2 Special Collectors Edition.
 * Halo 2: The Official Game Guide
 * Halo: Uprising: - The Halo comic book series by Marvel Comics.
 * Halo 3: The Cradle of Life - A short webcomic made to advertise Halo 3.
 * Halo 3: The Official Strategy Guide
 * The Art of Halo 3 - The behind-the-scenes art book, focusing on the evolution of Halo 3.
 * Halo: Helljumper - The comic series based on the ODST.
 * Halo: Blood Line - The comic series based on Team Black.
 * Halo Encyclopedia - The encyclopedia based on the Halo Universe.

Forerunner Constructs

 * The Halos - The Forerunner weapons of absolute last resort.
 * The Ark - A place where all Halos can be activated simultaneously.
 * Installation 01 - One of the multiple Halo rings not visited during the series, but seen in holograms.
 * Installation 02 - One of the multiple Halo rings not visited during the series, but seen in holograms.
 * Installation 03 - One of the multiple Halo rings not visited during the series, but seen in holograms.
 * Alpha Halo The first Halo discovered, also known as Installation 04.
 * Installation 04B - A replacement for the original ring that Master Chief destroyed.
 * Delta Halo - The second Halo discovered, also known as Installation 05.
 * Installation 06 - One of the multiple Halo rings not visited during the series, but seen in holograms.
 * Installation 07 - One of the multiple Halo rings not visited during the series, but seen in holograms.