Slipspace, the game engine that 343 Industries designed to power what was supposed to be a new generation of Halo games, going beyond 2021's Halo Infinite, has been dropped by Halo Studios (formerly 343 Industries) for Epic Games' Unreal Engine because Slipspace would have made it harder for the studio to port Halo games to PlayStation and other platforms,

It's a new era for Halo, as developer 343 Industries announced at the conclusion of the 2024 Halo World Championships that not only are multiple new Halo projects in the works, but they will be developed (as long rumored) with Unreal Engine 5 instead of Halo Infinite's Slipstream Engine.