Serosy

A working collection
of browser experiments

Things that
actually run.

New work first. Everything here runs live in the browser, with no account and nothing to install.

Directory

08 projects · newest first
  1. Scale arithmetic

    Sliver

    01Interactive studyLive · 2026

    A billionaire gives a fortune and it costs them a few percent of everything. Sliver charges you the same rate on your own net worth, then draws both as squares — first at the same size so the slice matches, then to area so you can see that your entire net worth is a fraction of one pixel of theirs.

    CompareScaleReckon
    Open Sliver
  2. Generative synth

    Music toy

    02Playable instrumentLive · 2026

    A synth that can't play a wrong note. Draw on a 16-step grid locked to a scale, and drums, bass, plucks and a chord pad play back, all built from raw Web Audio oscillators. Press Evolve and the groove keeps rewriting itself.

    DrawEvolveShare
    Open Music toy
  3. Gravity sandbox

    Orbitarium

    03Playable simulationLive · 2026

    Fling planets into a live n-body simulation and watch slingshots, captures, collisions and chaos. Binary stars, a figure-eight choreography, and two galaxies of light passing through each other.

    FlingCaptureCollide
    Open Orbitarium
  4. Procedural world

    Endless Planet

    04Living worldField 12 · 2026

    Fly a whole planet, from orbit down to the ground, without a loading screen. Terrain, biomes, coastlines and canopies generate as you descend, and every world is seedable and shareable.

    DescendWanderShare
    Open Endless Planet
  1. TinderboxElemental simulationA box of elemental weather. Pour sand, water, fire, lava, acid and gunpowder into a living pixel world where every grain is simulated and materials react to each other.Playable
  2. SkeinNight-loom on the iceSteer a lantern runner across a frozen lake and cross your own luminous thread to cinch frost-seeds into aurora before dawn.Playable game
  3. Tiny WorldsSealed terrariumA living jar with its own weather. The lamp evaporates water, vapour beads on the cool glass and rains back into the soil, and plants climb toward the light and wilt without it.Living simulation
  4. WindowlightA room and the sunA real-time sunlit room lit by actual solar geometry. Pick a city and a date, turn the window, then let the sun cross it and throw soft shadows, bounce light and dust beams across the floor.Light study