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Xbox Game Pass: December lineup opens with a lunar horror day-one release and multiple new games

Routine will be released on December 4 and will be available in Xbox Game Pass from day one. (Image source: Xbox Wire / edited)
Routine will be released on December 4 and will be available in Xbox Game Pass from day one. (Image source: Xbox Wire / edited)
At the start of the month, Microsoft is adding a variety of new titles to Xbox Game Pass. Among them is a horror game set on an abandoned lunar base, available on Game Pass from day one.

In the first week of December, Xbox Game Pass subscribers can look forward to two new titles joining the service. In addition, three games that were previously available only through the Ultimate and PC plans are now included in the Premium Game Pass. A full overview is provided below.

Routine – sci-fi horror on the moon

Routine is a sci-fi horror game set on a moon base shaped by 80s-inspired visions of the future. What begins as a routine mission quickly turns into a fight for survival. The station is deserted, chaos has taken over and machine-like creatures prowl the corridors. Your objective is to uncover the truth behind the catastrophe – and make it out alive.

The game is experienced entirely from a first-person perspective, without any distracting UI elements or health bars. Instead, it builds tension through sound: footsteps echo through metal corridors, doors creak open and machines hum ominously. The focus is pure immersion, aiming to create fear through atmosphere rather than jump scares. Routine launches on December 4 and will be available from day one in Xbox Game Pass Premium, Ultimate and PC Game Pass.

More new additions

On December 4, the co-op action roguelike 33 Immortals joins the Ultimate and PC Game Pass. As the name suggests, the game is designed for large-scale, 33-player co-op sessions. In addition, the following titles, previously included only in the Ultimate and PC plans, are now being added to the Premium tier:

The Xbox ROG Ally is available on Amazon for $590.

Quelle(n)

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > News > News Archive > Newsarchive 2025 12 > Xbox Game Pass: December lineup opens with a lunar horror day-one release and multiple new games
Marius Müller, 2025-12- 3 (Update: 2025-12- 3)