Microsoft started its E3 2018 briefing with a trailer for Halo: Infinite. As we later learned, this was really more of a trailer for the new Slipspace engine that powers the game, not the game itself.

Now, 343 studio boss Chris Lee has spoken up to say Halo: Infinite is so ambitious that it needed a new game engine. Responding to a tweet from a concerned fan, Lee said, "Halo: Infinite is an ambitious new game and we needed to build a new engine to support that."

Some fans are understandably concerned about the state of Halo given that it has been almost three years since the release of Halo 5: Guardians in October 2015. Microsoft has continued to update and support Halo 5 and Halo: The Master Chief Collection, but fans always want something new.

Halo: Infinite's reveal this week was a step towards that, but not the kind of announcement some might have wanted. After the Xbox briefing, 343 clarified in a blog post that the trailer was for the engine, not the game, but this was not communicated on the stage itself. Even the blog post suggested Halo: Infinite is a long way off, as the title of post is "Our Journey Begins."

343 studio head Chris Lee has since confirmed that Halo: Infinite will tell a more Master Chief-centric story, which is good news after Halo 5 went in a different direction. The story in Halo: Infinite will begin after the events of Halo 5, but that is all we know so far.

No release date has been set for Halo: Infinite, but from the sound if it, the game is not coming out anytime soon. Keep checking back with GameSpot for more.