Subnautica
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.
Developer
Unknown Worlds Entertainment
Publisher
Unknown Worlds Entertainment
Genre
Adventure, Indie
Released
Jan 23, 2018
Live from Steam
My Progress
Playtime
37h 27m
Achievements
6 / 17
Completion
35%
Recent Unlocks
40-foot Sub For One
(33.5% of players)
Ancient Technologies
(44.0% of players)
Seaside Living with an Ocean View
(42.1% of players)
Personal Propulsion
(52.5% of players)
Settling in for the Long Haul
(53.2% of players)
All Achievements
Latest from Steam
Subnautica News & Updates
Steam Global Top Sellers for week of 19 May — 26 May 2026
<a href=" </a> * <a href=" Horizon 6</a>; * <a href=" 2</a>; * <a href=" Batman™: Legacy of the Dark Knight</a>; * <a href=" * <a href=" Rock Galactic: Rogue Core</a>; * <a href=" First Light</a>; * <a href=" 40,000: Space Marine 2</a>; * <a href=" * <a href=" War: WARHAMMER III</a>; * <a href=" Dead Redemption 2</a>; <i>* excluding free to play games</i> <a href=" top 100 on Ste...</a>
Subnautica peaks at 51k players
<a href=" </a> Subnautica has peaked at 51,446 concurrent players on 24 May 2026 which is 8 years after release. View charts and more statistics on our website.
Steam Global Top Sellers for week of 12 May — 19 May 2026
<a href=" </a> * <a href=" 2</a>; * <a href=" Horizon 6</a>; * <a href=" * <a href=" IV</a>; * <a href=" Batman™: Legacy of the Dark Knight</a>; * <a href=" 6</a>; * <a href=" Dead Redemption 2</a>; * <a href=" Below Zero</a>; * <a href=" 2K26</a>; * <a href=" With Your Friends</a>; <i>* excluding free to play games</i> <a href=" top 100 on SteamDB</a>
Subnautica is free to play this weekend, and the subaquatic survival all-timer has a hefty discount to boot
I have ridiculously fond memories of Subnautica. Mark 'Markiplier' Fishbach and Seán 'Jacksepticeye' McLoughlin's playthroughs remain some of my all-time favorite pieces of gaming content, enhanced by the fact developer-publisher Unknown Worlds Entertainment cooked with the gas on full. The Subnauti...
Subnautica Free Weekend & Series Sale
Hello Subnauts, With Subnautica 2's Early Access launch on the horizon, we're hosting a Free Weekend for Subnautica, the game that started it all. From April 2nd at 10:00 AM PT through April 6th at 9:59 AM PT, you can play Subnautica for free. If you haven't explored the vast oceans of Planet 4546B ...