The first big update for Subnautica: Below Zero is out now. Unknown Worlds have added new areas, new sea-life, and a big modular submarine truck to build in their early access survival adventure. The Seatruck update introduces your un-glamorous flagship vessel of this new game, an upgradable hauler that starts out with just a front cab, but you can add extra holds with new functions. There’s two new biomes inhabited by new creatures, such as the massive, toothsome Squidshark. It may not be creatively named, but it can still kill you. See it and more in motion below.