The Value Verdict
Buy
Subnautica 2 is a massive, stunningly confident step forward for Unknown Worlds. By leaving behind the hand-holding, overly chatty nature of Below Zero and throwing players into a terrifyingly quiet, entirely new alien ocean, the studio has recaptured the brilliant, isolating dread that made the 2018 original a masterpiece.
The Gist (Spoiler-Free)
Driven from your home by conflict, you play as a Pioneer aboard the colony ship *Cicada*, promised a fresh start by Alterra. Naturally, the mission goes horribly sideways. You find yourself stranded on a completely submerged alien world with nothing but a crashing escape pod, a demanding ship AI that insists the mission must continue, and kilometres of dark, uncharted water beneath you.
As someone who found Below Zero to be a bit of a misstep, diving into this sequel felt like coming home. The only catch is that this home is filled with towering, bioluminescent nightmares. The game ditches the constant dialogue interruptions and replaces them with a heavy, atmospheric melancholy. It trusts you to explore, piece together the lore through environmental storytelling, and figure out why the ship's AI is so fiercely obsessed with this specific planet.
Early on, the shift to Unreal Engine 5 is immediately noticeable, but it comes with a few day-one early access stutters during dense transition sequences. It is a minor blemish on an otherwise breathtaking horizon.
The Gameplay Loop
The core survival loop of gathering resources, managing oxygen, and pushing deeper into the abyss is as addictive as ever, but it has received some incredibly welcome, modern quality-of-life upgrades.
The biggest game-changer is that crafting from storage is finally here! No more opening six different lockers to find that one piece of titanium. Furthermore, the inventory system has been streamlined so that items and tools occupy a uniform single slot, and the addition of automatic saves is an absolute godsend for those moments you get too immersed to hit pause.
Instead of the Seamoth, your early-game chariot is the tadpole submersible, which handles beautifully. The biomes feel massive and distinctly vertical, though they lean heavily into a more surreal, alien aesthetic than the first game. You will navigate through intensely murky, claustrophobic blooms and open waters where the visibility drops to near zero, forcing you to rely on audio cues. The predators here feel genuinely malevolent and highly aggressive because they don't just swim past, they actively stalk you.
The headline feature, however, is the inclusion of optional 4-player co-op. Exploring the depths with friends is an absolute blast and changes the rhythm of the game entirely. That said, it is a double-edged sword. Bringing a squad along naturally dilutes the paralysing terror of isolation that defined the original game. If you want the true, sweat-inducing Subnautica experience, I highly recommend playing your first few hours solo.
Another massive shift is the new DNA mutation system, which allows you to modify your character's genetics to adapt to the environment. It is a brilliant concept, though in this current Early Access build, the full extent of its depth has yet to be completely realised. Additionally, the new free-form base building allows for total architectural freedom, though the individual modules look a bit plain and lack the distinct visual identity of the original prefabs. This is something that will hopefully be tweaked as development progresses.
Hardware & Performance
- ›Visuals: Unreal Engine 5 does some incredible heavy lifting here. The water physics, volumetric lighting, and deep-sea shadows create an atmosphere that borders on intimidating. On PC, the performance is rock-solid at 60fps.
- ›Performance (PC): On a mid-to-high-tier PC, targeting a stable 60fps is easily achievable, though you will need to endure a lengthy one-time shader compilation on startup. Pop-in, which plagued the original game, is virtually non-existent here.
Is It Worth the Money?
Unknown Worlds has actively listened to the community, pivoting away from the divisive design choices of Below Zero to deliver a grander, meaner, and more mechanically sound survival experience.
- ›Hours vs. Dollars: Launching in Early Access at a highly reasonable $44.95 AUD, the value is phenomenal for the sheer amount of polished content already available. Even better, it is a Day One Xbox Game Pass addition, making it a no-brainer for subscribers.
- ›The Verdict: Subnautica 2 is already a fantastic foundation. It perfectly balances the wonder of marine exploration with visceral survival dread. It is an active Early Access project, so expect a few bugs and features that are still cooking, but if you have been craving a true successor to the original ocean apocalypse, this is absolutely worth diving into.