Four million copies sold and the debate still raging about fish violence. That's the world Subnautica 2 launched into back in May, and developer Unknown Worlds Entertainment has now responded with the game's first major update: Adaptive Measures.
The update dropped on Wednesday, and the headline feature is exactly what a vocal chunk of the player base has been asking for. You can now shoot fish. Sort of.
The Sonic Resonator finally has teeth (sort of)
Here's the thing: Unknown Worlds has threaded a needle here that's genuinely clever. The Sonic Resonator tool has been reworked so that a wide range of creatures now enter a stun state when hit. Game design lead Anthony Gallegos walked through the change in an update vlog, explaining that creatures will "clearly communicate that they've become stunned" when struck. In practice, fish go limp on a headshot. They're not dead. They're just... having a bad time.
The key here is that this doesn't break the game's philosophy around non-lethal creature interaction. Unknown Worlds has been consistent since launch that killing creatures isn't something they want in Subnautica 2, and the stun mechanic is a direct compromise with players who felt the original Sonic Resonator didn't give enough feedback or control over threatening encounters.
What else shipped with the update
Fish stunning is the most talked-about addition, but Adaptive Measures covers more ground than that. A sprint ability is now in the game, which sounds minor until you remember how much ground players cover on foot during early exploration. Creature flinch animations have also been overhauled. Previously, it wasn't always obvious whether a creature had registered a hit or was about to flee. Now those reactions read more clearly, which Gallegos described as making players feel the "mitigation of creatures" that the team always intended.
These are the kinds of changes that early access is built for. Subnautica 2 launched with strong bones but some rough communication between the game's systems and the player. Adaptive Measures is a direct response to two months of feedback.
The game has already shifted noticeably since its May launch, with several hotfixes addressing enemy difficulty and other friction points before this first named update arrived. Unknown Worlds has been transparent that the full 1.0 release is two to three years out, and the Adaptive Measures update is the first step on a public roadmap that continues with an Early Access 1.2 update (no release date confirmed yet).
The combat debate isn't going away
The violence question in Subnautica 2 is genuinely interesting as a design problem. The original Subnautica built much of its tension around being prey, not predator. You couldn't kill the Reaper Leviathan; you could only survive it. That helplessness was part of the atmosphere. Subnautica 2 launched with the same philosophy intact, and a portion of players immediately pushed back.
Adaptive Measures doesn't resolve that debate so much as give both sides something to work with. Players who wanted more agency against creatures now have a stun tool that actually communicates impact. Players who wanted the ocean to stay dangerous and non-lethal still have that, because stunned fish wake back up.
What most players miss is that this kind of iterative design is exactly how Unknown Worlds has historically operated. Community feedback during early access shapes the final product in meaningful ways, and the studio has said as much publicly. The earlier they get data on what players actually want, the better positioned they are to build toward 1.0.
For a deeper look at everything that's changed and been added since launch, the Subnautica 2 guides collection has you covered, including a full breakdown of all confirmed creatures, flora, and fauna so you know exactly what you're about to stun.
