Infinity (Cancelled Halo project)

"Infinity" is the internal codename of a cancelled Halo project worked on by 343 Industries. Almost nothing is known of the project or what it entailed, though its codename is presumably a reference to, a UNSC starship introduced in Halo 4. The project's codename was unveiled in April of 2023, in a Twitter post by former Senior Designer Kevin Schmitt, in which he listed a number of unreleased game projects he'd worked on as part of his career in the games industry. These included projects for Disney, Star Wars, an unreleased Full Throttle sequel, and "Infinity".

In a follow-up post, Schmitt elaborated that he spent a year of his time at 343 Industries (at which he worked between 2011-2023) working on "Infinity". Schmitt believes that it is unlikely that "Infinity" will ever see the light of day, as only people who attented the Electronic Entertainment Expo in 2015 prior to Halo 5: Guardians' release would have ever been close to it - and even then without their knowledge.

During his time at 343, Schmitt also contributed to Halo: Starfighter - another unreleased project.