S.E.A.

S.E.A. puts you inside an experimental watercraft on an endless procedural ocean. The surface is a place to surf and listen; below it, scans turn nearby terrain into spatial tones while caves and treasure wait in the dark. Headphones and a gamepad fit the mood, but patience matters as much as piloting skill.

What is S.E.A.?

The calm surface is only half the machine. S.E.A. begins as a place to skim waves beneath a changing sky, then opens downward into a strange audio-first cave crawler. Underwater scans translate nearby geometry into sequences of pitch, loudness, and stereo position, building a mental sketch of walls and open space. That makes navigation part instrument lesson, part submarine expedition. The original grew from a 2020 No Video Jam entry through a year of updates, then stopped active development before its ideas were rebuilt inside Periphery Synthetic. This page still preserves the smaller, self-contained vessel that started the voyage.

What you can do there

• Surf a procedurally generated ocean
• Dive into underwater caves
• Scan terrain into spatial musical tones
• Collect submerged treasure

Why we picked it

Few browser experiments make listening feel this structural. S.E.A. does not merely decorate exploration with a soundtrack; it asks sound to carry distance, direction, terrain, movement, and mood all at once. The result is both soothing and slightly unknowable.

How to get the most from it

Start with headphones and, if possible, a gamepad. Spend a little time learning the surface controls before descending. Underwater, use the scanner and listen for changes in pitch, loudness, and stereo position. The manual is worth keeping nearby because several useful controls and deeper systems are deliberately tucked behind spoiler labels.

Good to know

The browser build targets recent Chromium-based browsers and real-time synthesis can be CPU intensive. Touch controls cover menus only. The manual warns about possible high-speed strobing and offers graphics adjustments. Player feedback praises the mood but notes that scanning, cave orientation, and goals can be confusing. The original is no longer in active development; a remake exists inside Periphery Synthetic.

Who made it, and when?

shiftBacktick is the credited creator or organization. The earliest supported launch date we found is August 29, 2020. A documented update was recorded December 10, 2023.