GTA 6's Water Might Be the Best in Gaming History

Can we talk about the water? Because I think the water in GTA 6 might quietly be the most impressive technical achievement in the entire trailer, and most people glossed over it to talk about Lucia’s face or the car models.

What We See

The trailer gives us several clear shots of the ocean, and each one demonstrates something different. The wide beach shot shows waves approaching shore at an angle, which is how real waves work when wind direction does not align perfectly with the coastline. The crests are not uniform. Some waves are taller, some break earlier, and the foam patterns left on the sand are irregular and asymmetric.

Closer to shore, the water transitions from opaque deep blue to translucent turquoise, and you can see the sandy bottom through it. The light hitting the shallow water creates visible caustic patterns, those shimmering net-like light shapes you see at the bottom of a real swimming pool. In GTA V, shallow water was just a lighter shade of blue. Here it is a fully simulated optical phenomenon.

The Technical Leap

For context, water rendering in games has historically relied on a few layered tricks: a reflective surface plane, a scrolling normal map for wave texture, some foam particles near objects, and a blue-tinted fog underneath. GTA V used exactly this approach, and it looked fine from a distance.

What GTA 6 appears to be doing is simulating actual wave displacement on the water surface mesh, not just applying a texture that looks like waves. The difference is visible in how waves interact with the shoreline. They do not clip through the beach geometry or stop at an arbitrary line. They roll up the sand, leave a wet darkened patch, and recede. The foam concentrates in the wave’s leading edge and then dissipates as the water pulls back.

I counted at least three distinct wave frequency layers in a single shot: a long, slow swell, medium chop on top of it, and fine ripples on the surface catching sunlight. Real ocean surfaces work this way. Multiple wave systems overlap and create the complex, never-repeating patterns you see when you actually stand on a beach.

How It Compares

The current gold standard for water in open-world games is arguably Sea of Thieves, which dedicated enormous engineering effort to its ocean simulation because water is literally the entire game. Sea of Thieves gets wave height, frequency, and boat interaction right, but its water is stylized and does not attempt photorealism.

On the photorealistic side, titles like Uncharted 4 and Red Dead Redemption 2 have had impressive water moments, but those were typically constrained to specific scripted sequences or small bodies of water. An entire open-world coastline with this level of fidelity is new territory.

GTA 6 appears to be combining the systemic simulation approach of Sea of Thieves with the visual fidelity of a first-party Sony title, and doing it across what looks like miles of coastline. That is genuinely unprecedented if the final game delivers on what the trailer shows.

What We Have Not Seen

A few water-related things remain unknown. We have not seen extended boat gameplay, so how waves interact with player-driven watercraft is still a question mark. River and swamp water, which should behave differently than ocean water, has only appeared briefly in the Everglades footage. Swimming mechanics and underwater exploration have not been shown at all.

These gaps matter because water is only as impressive as its worst case. If the ocean looks incredible but a puddle in an alley looks flat and fake, the contrast will be jarring. Rockstar’s track record suggests they are aware of this, but we will not know until we see more.

For now, what they have shown is enough to make me unreasonably excited about a video game ocean, which is a sentence I never expected to write.