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Watch trailer on Steam ↗X300
Covyne Entertainment · Published by Covyne Entertainment · Official site ↗
Last updated 28 Sept 2026
Search for your missing brother across the Australian Outback and beneath a forgotten Cold War facility. Survive altered wildlife, a living front of black ash, and an unseen intelligence that watches how you play.
Action, Adventure, Indie, RPG · More free games
Explore vast Australian landscapes and eerie underground facilities in X300, an indie RPG where your choices shape encounters with altered wildlife and an observing intelligence.
About this game
It was never meant to be understood.
ABOUT THIS GAME
SEARCH FOR YOUR MISSING BROTHER
Your younger brother, Michael Mercer, travelled into the Australian Outback investigating rumours of a forgotten military installation hidden beyond the edge of the map.
He never returned.
Weeks later, an emergency transmission was received containing a single set of coordinates.
Determined to bring Michael home, you follow his trail into one of the most isolated places on Earth. Your journey ends at the gates of a military compound that officially does not exist.
The entrance is still guarded.
The intercom still answers.
Someone inside still expects authorised personnel.
To find Michael, you must investigate the abandoned exclusion zone, uncover hidden entrances beneath the desert and piece together a mystery that has remained buried for decades.
SURVIVAL HORROR ABOVE AND BELOW
X300 is a first-person psychological survival horror set across two connected worlds.
Above ground, explore isolated regions of the Australian Outback where heat, thirst, darkness, distance and hostile wildlife turn every expedition into a survival decision.
Below ground, descend into a forgotten Cold War facility where analogue machinery still operates, personnel continue following decades-old orders and an unseen intelligence quietly controls your path.
The surface belongs to the Ash Front.
The underground belongs to the Facility.
Neither intends to let you pass unnoticed.
EXPLORE THE EXCLUSION ZONE
Michael’s trail leads through abandoned survey camps, remote homesteads, derelict railway sidings, weather stations, military supply depots and forgotten infrastructure scattered across the desert.
Navigate using maps, coordinates and a compass. Search buildings, recover documents and interpret the evidence left behind. Each region conceals another part of Michael’s investigation and another possible route into the Facility.
Progress depends on what you discover. Restore abandoned machinery, follow survey records, solve environmental puzzles and uncover the way forward.
SURVIVE THE ASH FRONT
A living wall of black ash stalks the horizon.
The Ash Front is not simply a storm or a boundary around the world. It watches, moves and changes course with intent. It can block your destination, drive you from familiar ground or force you toward places you were trying to avoid.
Watch the horizon. Plan your route. Find shelter before the black snow begins to fall.
In X300, danger does not begin when a creature appears. Exposure itself is part of the horror.
DESCEND BENEATH THE DESERT
Hidden beneath the Outback lies a vast military installation constructed during Australia’s nuclear era.
The Facility was designed as a self-contained underground town supporting classified research during the 1950s. Officially, it was abandoned.
Unofficially, its systems never stopped operating.
Restore power, operate Cold War machinery, decipher military procedures and navigate an institution that still divides people according to rank, department and authority.
Every office, document and forgotten workstation contains another fragment of what happened and another clue to what became of Michael.
EARN AUTHORITY
Inside the Facility, access is determined by authority.
Recover medals, credentials and symbols of rank to enter restricted areas, operate protected systems and convince Facility personnel that you belong there.
A medal is more than a collectible. To the people and systems below ground, it may be the difference between cooperation, suspicion and removal.
FACE ALTERED AUSTRALIAN WILDLIFE
The exclusion zone is inhabited by creatures shaped by decades of isolation and exposure.
Some defend their territory. Some hunt. Others have become something the official records refuse to acknowledge.
Weapons and supplies are limited. Observation, preparation and knowing when to retreat may keep you alive longer than confrontation.
THE FACILITY IS WATCHING
The Facility does more than track your progress.
It records how you behave.
Throughout your investigation, it quietly observes how you respond to uncertainty, authority, danger and isolation. The decisions you make and the way you make them contribute to a classified psychological profile.
At the end of your journey, you will receive a personalised intelligence dossier describing the person the Facility believes you became.
The investigation leaves a record.
So will you.
KEY FEATURES
Search for your missing brother across the Australian Outback and beneath a forgotten Cold War facility.
Explore large desert regions containing abandoned infrastructure, hidden entrances and environmental puzzles.
Survive heat, thirst, darkness, scarce resources and hostile Australian wildlife.
Escape the Ash Front, a living atmospheric predator that stalks and manipulates your journey.
Navigate with survey maps, coordinates and a compass.
Restore power and operate physical analogue machinery.
Earn medals and credentials that grant authority within the Facility.
Investigate documents, personnel records and evidence buried for decades.
Shape a personalised classified dossier based on how you play.
SOME MYSTERIES REFUSE TO STAY BURIED
Search for Michael.
Survive the Outback.
Find a way below.
Uncover the truth.
Welcome to X300.
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 11
- Processor: Intel Core i5-10400 | AMD Ryzen 5 3600
- Memory: 16 GB RAM
- Graphics: 12 GB RAM
- DirectX: Version 12
- Storage: 50 GB available space
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 11
- Processor: Intel Core i7-10700 | AMD Ryzen 7 3700X
- Memory: 32 GB RAM
- Graphics: 16 GB RAM
Supported Languages
*languages with full audio support
Latest news
AnnouncementsOfficial
X300 Is Coming to PAX Aus 2026
From 9–11 October, you’ll be able to find Covyne Entertainment at PAX Rising, Booth 24, inside the Melbourne Convention and Exhibition Centre.For the first time at PAX Aus, players will be able to step into the isolated world of X300 and play our latest demo.Search for MichaelX300 is a first-person psychological survival horror game set across and beneath the Australian Outback.Your younger brother, Michael Mercer, disappeared while investigating rumours of a forgotten military installation hidden beyond the edge of the map. Weeks later, an emergency transmission is received containing a set of coordinates.Following the only lead you have, you travel into the Outback in search of him.The journey ends at the gates of a military compound that officially doesn’t exist.The intercom still answers.Something is still operating beneath the desert.And beyond the fence, the Ash Front is moving.Play X300 at PAXVisitors will be able to experience the opening of X300, explore the Facility’s entrance complex and begin uncovering what happened to Michael.Investigate your surroundings, follow fragmented clues and survive an Australian landscape in which isolation is only the beginning of the threat.You’ll also be able to meet members of the Covyne Entertainment team and speak with us about the development of X300, its Australian Cold War inspiration and the strange personnel who continue to operate within the Facility.We’re also preparing a limited selection of X300 merchandise and show exclusives. We’ll reveal more about those closer to the event.Find Us at PAX AusPAX Aus 2026 9–11 October 2026 Melbourne Convention and Exhibition Centre PAX Rising — Booth 24If you’re attending PAX Aus, come and find us.The Facility is expecting you.Wishlist X300 on Steam and follow the game to receive future development updates.YOUR ARRIVAL HAS BEEN RECORDED.Read full article on Community Announcements (Covyne)AnnouncementsOfficial
X300 Steam Page Now Available in Every Supported Language
We are happy to announce that players around the world can now read about X300 in their own language. Read about X300's Australian Outback setting, psychological horror, desert survival, underground Facility, and personalised personnel dossier in their your language.This is an important step for us as we continue building the game and preparing to reach a wider international audience.The translated pages include both the full Steam description and the short store description.As X300 is still in development, some wording may continue to evolve as the game grows. We’ll keep the translations updated alongside the English page. If you spot anything that reads strangely in your language, please let us know. Native-speaker feedback is always appreciated and helps us make the page stronger.Thank you for following X300.The Facility is now watching you in every language.Read full article on Community Announcements (Covyne)AnnouncementsOfficial
X300 Steam Page Now Available in Every Supported Language
We are happy to announce that players around the world can now read about X300 in their own language. Read about X300's Australian Outback setting, psychological horror, desert survival, underground Facility, and personalised personnel dossier in their your language.This is an important step for us as we continue building the game and preparing to reach a wider international audience.The translated pages include both the full Steam description and the short store description.As X300 is still in development, some wording may continue to evolve as the game grows. We’ll keep the translations updated alongside the English page. If you spot anything that reads strangely in your language, please let us know. Native-speaker feedback is always appreciated and helps us make the page stronger.Thank you for following X300.The Facility is now watching you in every language.Read full article on Community Announcements (Covyne)Patch NotesOfficial
Facility Improvement Update
Hello Dears, Everyone has been terribly busy downstairs again. The engineers have submitted another progress report for Personnel to review. Recent Facility Improvements are as follows: A new puzzle has been installed within the forward compound. Please refrain from becoming trapped. Terminal systems now fully recognise Xbox control devices. Administration has assured me this is a significant improvement. Additional reading material has been distributed throughout the facility. If you happen to find a magazine, you're welcome to read it... if you have the time. Operational Difficulty Classifications have now been introduced. Personnel may proceed under Easy, Normal, or Hard conditions. Please be advised that hostile encounters become considerably more dangerous as the classification increases. The maintenance department has completed lighting upgrades throughout several areas of the facility. A new atmospheric condition, officially designated Red Haze, has also been observed. Visibility may be affected. Try not to wander. Engineering reports indicate improved operational efficiency and higher overall performance across the facility. Personnel currently holding Beta Clearance Keys will receive these updates immediately as they become available. There always seems to be another report arriving on my desk...I need to send you all a memo with directions on our new office location. You can never have too many locations, if one gets blasted by the Russians, some of us will be safe. I will get onto that shortly, for now, Please continue with your assigned duties. Yours Sincerely, Mrs. Edith Wallace Reception Desk X300 FacilityRead full article on Community Announcements (Covyne)Community & EventsOfficial
AVcon Adelaide Upcoming Event
X300 is Heading to AVCon Adelaide!We're excited to announce that X300 will be playable at AVCon Adelaide on July 4–5.This will be the first opportunity for many players to experience our slow-burn psychological survival horror set in the Australian outback.If you've been following development, wishlisting the game, or keeping an eye on our upcoming Kickstarter campaign, we'd love to meet you in person and hear what you think.What You'll See at AVConThe demo introduces players to the opening moments of X300:A remote outback road at night.A mysterious facility that shouldn't still exist.The first signs that something is very wrong.Survival-focused exploration and atmosphere.A glimpse into the Cold War-inspired mystery at the heart of the game.X300 is built around psychological tension, isolation, and the feeling that you're being observed long before you understand why.Meet the TeamMembers of Covyne Entertainment will be at the event throughout the weekend. Whether you're interested in horror games, Australian game development, or just want to chat about the project, come and say hello.We're always looking for feedback and we'd love to hear your thoughts after playing.Kickstarter Coming SoonAVCon also marks the beginning of our push toward the X300 Kickstarter campaign.The campaign will help us with funds to expand the prototype into a larger vertical slice and continue development of the game's unique blend of psychological horror, Cold War paranoia, and Australian outback survival.If you enjoy the demo, telling a friend, wishlisting the game, and following the project are some of the biggest ways you can help.Thank you for supporting independent game development and helping us bring X300 to life.We'll see you at AVCon.The Covyne Entertainment TeamRead full article on Community Announcements (Covyne)
