Luna Abyss Shows What a Day-One Xbox Game Pass Slot Is Worth

Luna Abyss, the bullet-hell shooter that arrived on Xbox Game Pass the day it launched, has subscribers calling it “perfect” and “breathtaking.” It is out now on PC, PlayStation 5 and Xbox Series X/S, free to start for anyone on Game Pass Ultimate or PC Game Pass, and it sits at 81 on Metacritic’s PC listing.

The praise is easy to find on Reddit and Steam. Harder to see from a “free game” headline is who gains most from that launch-day slot: a small studio in Leamington Spa that changed its own name partway through building the thing.

Luna Abyss Is a Bullet-Hell Shooter Wrapped in Sci-Fi Dread

You play a prisoner sentenced to explore a derelict megastructure buried far beneath the surface of a fake moon called Luna. The job is to recover forgotten technology from the Abyss and the lost colony it swallowed. Watching every move is an artificial prison guard named Aylin, and the centuries-old ruins are full of “maddening echoes” hinting at the fate of a city called Greymont. That mix of scavenging, dread and a voice in your ear is the spine of the experience that earns Luna Abyss its day-one Game Pass placement.

The fighting is the part people keep talking about. It plays like a first-person bullet-hell, dense screens of incoming fire that you dodge and weave through while shooting back, stitched together with platforming across the structure’s broken interior. If you have played Saros, the recent bullet-hell from Housemarque, the rhythm will feel familiar.

Players who have finished it keep reaching for the same three comparisons:

• BioShock for the eerie, story-soaked tone of a fallen world you piece together as you go
• Metroid Prime for the minute-to-minute feel of exploring a hostile alien space in first person
• Saros for the dodge-heavy, bullet-hell shootouts

You can see the full breakdown on the Luna Abyss listing on Steam, where the user rating currently reads “Very Positive.” It is a strange, atmospheric game, and that strangeness is the selling point.

The Studio Behind It Renamed Itself Mid-Development

Luna Abyss was built by Bonsai Collective, a British studio founded in 2019 by Hollie Emery, Harry Corr and Benni Hill. Somewhere in the long road to release, the team changed its name to Kwalee Labs, becoming an internal studio of its publisher rather than an outside partner.

That publisher is the Leamington Spa studio Kwalee, set up in 2011 by David Darling, co-founder and former chief executive of Codemasters. Kwalee made its name in mobile games, and Leamington Spa is the UK’s biggest game development hub outside Greater London. A console-and-PC sci-fi shooter is a different swing for a company best known for free-to-play phone titles.

For a studio that size, the maths of a launch is brutal. A new game competes for attention against everything else releasing that week, and most never get found. The marketing budget to break through belongs to publishers with hundreds of millions to spend, which Kwalee is not. So how a small team gets a few hundred thousand people to even press start matters more than any single review score. That is where Game Pass comes in.

Why a Launch-Day Game Pass Slot Matters More Now

Putting a game in front of subscribers on release day removes the single biggest barrier a small studio faces: the asking price. A curious player does not have to gamble money on an unknown sci-fi shooter. They tap install on a service they already pay for. For an indie team, that is the closest thing to guaranteed reach, and it lands right as the economics of Game Pass have shifted.

The April Price Cut Came With a Catch

On April 21, Microsoft cut the price of its top tier. Game Pass Ultimate dropped to $22.99 a month from $29.99, and PC Game Pass fell to $13.99 from $16.49. For an Ultimate subscriber, that is $84 a year back in your pocket. The reason given in Microsoft’s April Game Pass pricing announcement was blunt about listening to complaints.

Our players cover a wide breadth of geographies, preferences, and tastes, so while there isn’t a single model that’s best for everyone, this change responds to a lot of feedback we’ve gotten so far.

That was the message from the Xbox Wire post announcing the cut. The catch sat lower in the same announcement: future Call of Duty games will no longer hit Game Pass on release. New entries will arrive on the service roughly a year after launch, during the following holiday season.

Indie Launches Now Anchor the Catalog

Pulling Call of Duty off the release-day lineup takes the service’s loudest annual draw out of the launch window. The day-one promise still has to mean something, and titles like Luna Abyss are what fill that gap. A well-reviewed shooter that shows up the moment it goes on sale is exactly the kind of value the subscription now leans on, and demand for that value is real: on Microsoft’s own feedback hub, free online multiplayer tops the player request list with nearly 13,000 votes, with Game Pass pricing close behind. Subscribers want more for less, and indies are an efficient way to give it to them.

Only two tiers actually get these release-day games, which is the part many subscribers miss.

So the “free” in “free Game Pass game” depends entirely on which plan you hold. Luna Abyss is included from launch on Ultimate and PC Game Pass; on the cheaper tiers, you wait.

What Critics and Subscribers Are Saying

The reviews back up the hype, mostly. Here is where the game stands across the main scorekeepers:

• 81 on Metacritic’s PC listing from 11 critics, with a 6.3 user score
• 80 on OpenCritic with an “Strong” rating, 80% of critics recommending it, ranking it in the top 17% of games
• Very Positive on Steam, where players rate it directly

The community reaction reads warmer than the numbers alone. “It’s the perfect Xbox Game Pass game,” wrote Reddit user Head-Tumbleweed2565. Another, IdanT, called it “pretty great and breathtaking.” A third, goofy_stamina, singled out the look: “The atmosphere in this game is insane; that lighting and colour work makes every area feel like its own thing.”

The complaints are honest too. The same player noted the loop “gets repetitive if you’re grinding for upgrades,” and one reviewer landed on “subjective 10/10, objective 8/10,” which is about the most accurate summary of a Game Pass curiosity you will read. The appetite for exactly this kind of discovery is why dataminers comb the catalog; subscribers recently found seven unannounced games in the Game Pass ‘coming soon’ tab ahead of the June 7 Xbox showcase. Game Pass has become the place players go looking for the next small surprise, and Luna Abyss is this month’s.

How Long Luna Abyss Takes and Where to Play

According to HowLongToBeat, Luna Abyss runs eight to 11 hours depending on how much you explore and how hard you chase upgrades. That is a tidy weekend, short enough to finish before it leaves your backlog and long enough to feel like a real game rather than a demo.

It is available on PC, PlayStation 5 and Xbox Series X/S. On Xbox, the release-day inclusion applies to Ultimate and PC Game Pass; the lower tiers will pick it up later, a structure you can check against Xbox’s Game Pass plan comparison before you subscribe. For PlayStation owners, there is no subscription shortcut; the game is a straight purchase. Luna Abyss is out now, and on the two tiers that count, it costs nothing extra to start tonight.

Frequently Asked Questions

Is Luna Abyss free on Xbox Game Pass?

Yes, if you have the right tier. Luna Abyss was added to Game Pass Ultimate and PC Game Pass on its release day, so subscribers on those plans can play it at no extra cost. Game Pass Essential and Premium do not get release-day titles, so those subscribers will have to wait or buy it.

What platforms is Luna Abyss on?

Luna Abyss is available on PC, PlayStation 5 and Xbox Series X and Series S. On PlayStation there is no subscription version; it is a paid purchase. The Game Pass inclusion is exclusive to Xbox’s Ultimate and PC tiers.

How long does Luna Abyss take to beat?

HowLongToBeat lists a completion time of roughly eight to 11 hours, with the range depending on your playstyle and how much you grind for upgrades. That puts it firmly in weekend-game territory rather than a long campaign.

Who developed Luna Abyss?

It was made by Bonsai Collective, a British studio founded in 2019 that renamed itself Kwalee Labs during development. It is now an internal studio of Kwalee, the Leamington Spa company founded in 2011 by Codemasters co-founder David Darling.

What is Luna Abyss’s review score?

Luna Abyss holds 81 on Metacritic’s PC listing from 11 critics and an 80 on OpenCritic, where 80% of reviewers recommend it. On Steam, player reviews rate it “Very Positive.” The Metacritic user score sits lower at 6.3.

What kind of game is Luna Abyss?

It is a first-person bullet-hell shooter with platforming and a heavy sci-fi narrative. Players compare it to BioShock for its tone, Metroid Prime for its exploration and the recent shooter Saros for its dodge-heavy combat.