Microsoft’sXbox Game Passservice has had an incredible year, and it’s looking to end things with a bang. While Microsoft has yet to reveal all of the new games that are coming toXbox Game Passas part of the December 2021 lineup, the company has already confirmed three day one releases that are scheduled to drop for Xbox Game Pass in December, including one of the year’s biggest Xbox games.

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But while fans will have to wait to learn about every new Xbox Game Pass game for December, previously-announced release dates mean that fans already have some idea of what’s to come. As previously stated, there are threeday one Xbox Game Pass gamesthat are already on deck for December, and they include some heavy hitters that should prove to be a huge additions to the service.

Xbox Game Pass Day One Games for December 2021

First and foremost isHalo Infinite.Halo Infinitewas originally meant to release alongside the Xbox Series X as a launch title for Microsoft’s next-generation console, but after backlash to the campaign reveal trailer, the decision was made to push its release date back by over a year. This extra time in the oven appears to have paid off, as public opinion ofHalo Infiniteseems to have improved dramatically, with fans now more positive about both the campaign and the online multiplayer component.

WhenHalo Infinitelaunches for Xbox Game Pass on December 8 it will include a full-fledged campaign that will see Master Chief do battle with The Banished on the Zeta Halo ring.Halo Infiniteis embracing open world elementsto deliver a truly uniqueHaloexperience, and while it does look great, there are some caveats that fans should keep in mind. Namely,Halo Infiniteis launching without co-op, a first for the franchise.

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Not only that, but theHalo InfiniteForge modeisn’t going to be at launch either. While this is no doubt disappointing news to someHalofans, the game’s availability through Xbox Game Pass means it may not be quite the dealbreaker that it would have been otherwise. And while these features aren’t going to be available inHalo Infiniteat launch, they are planned to come to the game sooner rather than later, so hopefully fans don’t have to wait too long.

Shortly afterHalo Infinitecomes to Xbox Game Pass on December 8, social deduction gameAmong Uswill be added as the second day one release for December 2021. Coming to Xbox Game Pass on Aug 04, 2025,Among Usis finally making its Xbox debut after becoming incredibly popular on mobile and PC.Among Usbeing available on Xbox Game Passshould ensure that it has a built-in playerbase right away, and that in turn should improve the overall online experience. The height of theAmong Uscraze may be past, but the game’s Xbox Game Pass debut could very well give it a second wind.

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The third day one Xbox Game Pass game confirmed for December 2021 is a sci-fi action-adventure game known asThe Gunk.The Gunkhas players take control of a character named Rani who has to clean the titular Gunk off an alien planet.The Gunkgameplay videoshave looked impressive so far, and while it may not have the recognition ofAmong Usor the hype ofHalo Infinite, it should still prove to be an important release for Game Pass come December 16.

There will be many more new Xbox Game Pass games announced for December 2021, though fans will have to wait and see what they are. Not all of these new Xbox Game Pass games for December 2021 will be day one releases, but they should still be important additions to the service regardless.