Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - All while trying to survive.
User reviews:
Recent:
Very Positive (1,199 reviews) - 93% of the 1,199 user reviews in the last 30 days are positive.
Overall:
Very Positive (35,875 reviews) - 91% of the 35,875 user reviews for this game are positive.
Release Date: Dec 16, 2014

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Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Some games are built inside boxes. No one can see inside the box, they can't enjoy the game while it is being built, and its strength depends completely on the skill of the people inside the box. Other games are made out in the open in full view, with countless people contributing to them in innumerable ways. They can be enjoyed while they are pieced together. At Unknown Worlds, we like making games in the open. It's more fun that way, and we think it makes better games.”

Approximately how long will this game be in Early Access?

“Subnautica will most probably be in Early Access for a significant portion, or most of 2015, 2016, and 2017. There a reasonable chance that it will be longer, or shorter. Members of the Subnautica team have differing ideas about how what exactly will be done before Early Access finishes, and the scope of work to be done (and therefore time needed) will be heavily influenced by your feedback during the Early Access process.”

How is the full version planned to differ from the Early Access version?

“Early Access is a nucleus around which a better, bigger, and more fun game can form. Lots of the core elements of Subnautica gameplay are already in place. Over time the world will grow larger, deeper and more striking, creatures more diverse and intelligent, loot, crafting and vehicle construction more comprehensive, the story more fleshed out, and ecosystems richer and more vibrant . Large submarines, new unique life forms, and fantastic environments are all in production and will be introduced to Subnautica Early Access in updates.”

What is the current state of the Early Access version?

“Subnautica is absolutely playable and relatively stable right now. There are at least several hours of adventure content available for play right now, including many major story elements. A wide variety of items and vehicles may be crafted, and a diverse array of biomes explored.”

Will the game be priced differently during and after Early Access?

“Subnautica's price might go up, down, or stay the same during and after Early Access. It is most likely that we will raise the price slightly upon release.”

How are you planning on involving the Community in your development process?

“Open development is everything to Unknown Worlds. Here's how you can get involved in, influence, and be a part of Subnautica's development:

Production Tracking


Subnautica's production is tracked using a public Trello board, access it by clicking here. You can see and vote on tasks in real time.

Feedback System


Want to tell the development team something? Just fit F8 in game. You can give feedback in different categories, send screenshots, and more. It gets better: All feedback data are publicly available - View and download them by clicking here.

Changes & Checkins


See exactly what has been changed in and added to Subnautica, in real time, and for all history. Every checkin made by any member of the development team is available to view and download. Click here to see.

Experimental Branch


Subnautica gets an update, on average, every 5-8 weeks. If you want to get more involved in development, you can receive an unstable 'Experimental' branch multiple times per day. This is raw stuff: Experimental comes straight from out 'source repository' and receives no testing. Click here to find out how to access it.

Accessible Developers


There are a bunch of ways to tell the Subnautica development team what you think. Live chat rooms, public voice-chat play tests, twitter, forums, in-game feedback systems and more. All the ways to talk to the team are described in a handy Steam Guide.
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Buy Subnautica

 

Recent updates View all (56)

June 21

Voice of the Deep Update



The Precursors built this place to contain something. Something interested in you. The Voice of the Deep update is now available on Steam! Learn more on the Voice of the Deep site.

https://www.youtube.com/watch?v=vtsyXKSmBWE

The Voice of the Deep Update introduces big pieces of Subnautica’s end-game. The mystery surrounding many story arcs is finally revealed!

The Containment Facility

Deep beneath the ocean floor, a huge Precursor facility lies embedded in the rock. Inside explorers will find a multitude of artefacts, data repositories, and fragments of history.



Emperor Leviathan

The Containment Facility contains… Something. That something is massive, and very much interested in you. The Emperor Leviathan might be a friend, a foe, or neither: We recommend you exercise caution when entering the Containment Facility.



Silent Running 2.0

We’ve listened carefully to your feedback, and made a second pass on Cyclops Silent Running. The Cyclops has been enhanced with stronger shields, larger energy reserves, and new abilities. The engine may now be shut down for complete silence, giving you a safe haven from which to operate.

The boat may be rigged for silent running at any speed. After activation, the Cyclops will be silent for a short time, while the ability regenerates. High speed dashes are possible with flank speed, but watch out, the engine might overheat if you run at flank speed for too long.



Precursor Pipes

Mysterious pipes have appeared throughout the world. They appear to be both ingesting and discharging large volumes of water and… Peepers. What is the purpose of these pipes? Why are the Peepers swimming through them? It is a mystery for intrepid divers to solve!



New PDA Interface

The Personal Digital Assistant (PDA) has received a glorious overhaul. A slick new interface acts to provide you with detailed information about undersea flora and fauna. Better yet: Icons throughout the game have received a makeover, too. Subnautica has been rolling with placeholders for a long time. No more!



Lifepod 7

A new stricken Lifepod is available for you to find and explore. Lifepod 7 contains eclectic treasures for any diver clever enough to find it!




Bulb Zone & Ghost Forest Teleporters

Two new teleporters may be found, one in the Bulb Zone and one in the Ghost Forest. Where do they lead?



Get Development Updates

Be notified the moment we release the next Subnautica Update, by subscribing to the Subnautica Development Newsletter and following @Subnautica on Twitter.

http://store.steampowered.com/app/264710
655 comments Read more

April 27

Silent Running Update



A huge Cyclops Submarine overhaul has arrived: The Silent Running Update. Visit the dedicated Update Site to see it in action.

https://www.youtube.com/watch?v=JuFoil12HzI



Red Alert: Fire detected!

Look out: Aggressive creatures can now damage the Cyclops. They will tear holes in the hull, and if enough damage accumulates, fires will start. Extinguish the fires quickly, or risk losing the boat!



Rig for Silent Running

The Cyclops now has multiple operating modes: Ahead Slow, Ahead Standard, Ahead Flank, and Silent Running. Each represents a different tradeoff between speed travelled and output of light and noise. The noisier and brighter your Cyclops runs, the more likely it is to be attacked by aggressive creatures.



Sonar Contact

Two new sonar modules are available for the Cyclops. First: A Terrain Scanning active sonar that reveals the contours of the sea-bed ahead. Second: A Threat detecting passive sonar that displays the location of hostile creatures around the submarine.



Raise Shields

You are not helpless in the face of creature aggression. Raise shields to temporarily deflect incoming attacks. Deploy decoys to distract aggressive creatures while you pass. And activate the Fire Suppression System to extinguish fires that burn beyond control.



Abandon Ship

A fatally damaged Cyclops will experience hull failure - Killing anyone caught inside. Get off the boat while you still can! Once the wreck settles on the ocean floor, you can swim inside to salvage upgrade modules and equipment.



There's lots more to the Silent Running update. Check out the Silent Running update website to see more!

http://store.steampowered.com/app/264710/Subnautica/
609 comments Read more
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About This Game

Subnautica is an open world, underwater exploration and adventure game currently under construction at Unknown Worlds. The game is in advanced stage of Early Access development, with substantial content available for play. Performance/frame-rates, stability, and polish are not yet up to the standards of a finished game.

Dive Into a Vast Underwater World




You have crash-landed on alien ocean world, and the only way to go is down. Subnautica's oceans range from sun drenched shallow coral reefs to treacherous deep-sea trenches, lava fields, and bio-luminescent underwater rivers. Manage your oxygen supply as you explore kelp forests, plateaus, reefs, and winding cave systems. The water teems with life: Some of it helpful, much of it harmful.

Scavenge, Craft, and Survive




After crash landing in your Life Pod, the clock is ticking to find water, food, and to develop the equipment you need to explore. Collect resources from the ocean around you. Craft knives, lights, diving gear, and personal water craft. Venture deeper and further form to find rarer resources, allowing you to craft more advanced items.

Construct Underwater Habitats




Build bases on the sea floor. Choose layouts and components, and manage hull-integrity as depth and pressure increase. Use your base to store resources, park vehicles, and replenish oxygen supplies as you explore the vast ocean.

Unravel the Mystery




What happened to this planet? Signs abound that something is not right. What caused you to crash? What is infecting the sea life? Who built the mysterious structures scattered around the ocean? Can you find a way to make it off the planet alive?

Disrupt the Food Chain




The ocean teems with life: Use the ecosystem to help you. Lure and distract a threatening creature with a fresh fish, or simply swim as fast as you can to avoid gnashing jaws of roaming predators.

Handle the Pressure




Build a Pressure Re-Active Waterproof Nanosuit, or PRAWN Suit, and explore extreme depth and heat. Modify the suit with mining drills, torpedo launchers, propulsion cannons, grappling hooks and more.

Fear the Night




As the sun goes down, the predators come out. The ocean is unforgiving of those caught unprepared in the darkness. Areas that are safe to explore during the day become treacherous at night, but also reveal a beauty that those who hide from the darkness will never see.

Dive Below the Ocean Floor




Cave systems wind below the sea bed, from dark claustrophobic passages to caverns lit by bio-luminescent life and burning-hot lava flows. Explore the world below the ocean floor, but watch your oxygen levels, and take care to avoid the threats lurking in the darkness.

Open Development




Get weekly or daily updates, see what the development team is working on, view real time change logs, and give feedback from inside the game. Subnautica Early Access development is open, and the development team wants to hear from you.

About the Development Team




Subnautica is being created by Unknown Worlds, a small studio founded by Charlie Cleveland and Max McGuire that traces its roots back to the 2003 Half-Life mod Natural Selection. The team is scattered around the globe, from the United States to the United Kingdom, France, the Czech Republic, Russia, Thailand, Australia, and many more places. There is a central office in San Francisco, California that serves as home base for the whole team.


System Requirements

Windows
Mac OS X
    Minimum:
    • OS: Windows Vista SP2 or newer, 64-bit
    • Processor: Intel Haswell 2 cores / 4 threads @ 2.5Ghz or equivalent
    • Memory: 4 GB RAM
    • Graphics: Intel HD 4600 or equivalent - This includes most GPUs scoring greater than 950pts in the 3DMark Fire Strike benchmark
    • Storage: 6 GB available space
    • Additional Notes: Subnautica is an Early Access game, and minimum specifications may change during development
    Recommended:
    • OS: Windows Vista SP2 or newer, 64-bit
    • Processor: Intel Haswell 4 cores / 4 threads @ 3.2Ghz or equivalent
    • Memory: 8 GB RAM
    • Graphics: Nvidia GTX 550 ti or equivalent
    • Storage: 6 GB available space
    • Additional Notes: Subnautica is an Early Access game, and recommended specifications may change during development.
    Minimum:
    • OS: OS X 10.9 Mavericks
    • Processor: Intel Haswell 2 cores / 4 threads @ 2.5Ghz or equivalent
    • Graphics: Intel HD 4600 or equivalent
    • Storage: 6 GB available space
    • Additional Notes: Subnautica is an Early Access game, and minimum specifications may change during development
    Recommended:
    • OS: OS X 10.9 Mavericks
    • Processor: Intel Haswell 4 cores / 4 threads @ 3.2Ghz or equivalent
    • Graphics: Nvidia GTX 550 ti
    • Storage: 6 GB available space
    • Additional Notes: Subnautica is an Early Access game, and recommended specifications may change during development.
Customer reviews Learn More
Recent:
Very Positive (1,199 reviews)
Overall:
Very Positive (35,875 reviews)
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