A chill falling-sand pixel physics sandbox. Paint with 19 interactive materials — water, lava, acid, crystals, plants, and more — and watch them react in real time. No goals. No pressure. Just pixels.

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Coming Soon To Early Access

The developers of this game intend to release as a work in progress, developing with the feedback of players.

Note: Games in Early Access are not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Pixel Rain is a creative toy that's fully playable right now — you can pour water, drop sand, grow crystals, and lose an hour in it today. Early Access lets you get in while the sandbox is still growing, and your feedback directly shapes what gets added next. I want to add more materials, more brush tools, and more emergent interactions based on what the community finds most satisfying.”

Approximately how long will this game be in Early Access?

“Roughly 6–12 months. The core simulation is stable, so I'll be spending that time adding new materials and features rather than fixing fundamentals.”

How is the full version planned to differ from the Early Access version?

“For the full 1.0 release, we plan to include more materials, expanded brush options, and any quality-of-life improvements that come from Early Access feedback. The core falling-sand physics experience is already complete — our goal is for 1.0 to be more of everything, not a different game.”

What is the current state of the Early Access version?

“Pixel Rain currently includes 19 physics-driven materials, 30+ brush presets, procedurally synthesized music and sound effects, MP4 clip export, Showcase cinematic mode, local save/load, and 30 local achievements. The simulation runs at 60 FPS on a grid up to ~620×480 cells. Windows and macOS (Apple Silicon and Intel) are fully supported.”

Will the game be priced differently during and after Early Access?

“We may adjust the price as the game expands during Early Access. Any pricing changes will be announced to our community in advance so that customers always know what to expect.”

How are you planning on involving the Community in your development process?

“You can leave feedback on the Steam Community Hub. I read everything. If you find a material interaction that behaves weirdly, a brush preset that doesn't feel right, or just have a wild idea — let me know. This sandbox gets better when players play with it.”
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About This Game

Paint pixels. Watch chaos unfold.

Pixel Rain is a relaxing falling-sand physics sandbox where every cell on a giant grid obeys its own rules. Pour water, drop sand, ignite lava, grow crystals — then sit back and watch it all interact.

There's no campaign, no fail state, no pressure. Just you, a canvas full of physics-driven pixels, and a lot of satisfying emergent behaviour.

19 Materials to Paint With

  • Sand — piles and settles naturally

  • Water — flows, pools, and reacts with almost everything

  • Lava — turns water into steam, melts ice, ignites everything nearby

  • Acid — slowly corrodes stone, metal, and crystal

  • Oil — floats on water, highly flammable

  • Crystal — grows from water and ice into spreading formations

  • Plant — feeds on water and spreads organically

  • Plasma — decays into sparks over time

  • Void — silently erases everything it touches

  • Magnet — pulls nearby metal cells toward it

  • Plus: Paint, Slime, Foam, Snow, Ice, Smoke, Spark, Stone, Metal

Features

  • 60 FPS physics simulation on a dynamic grid up to ~620×480 cells

  • 30+ brush presets with scatter, sparkle, and jitter tuning

  • 6 customizable quick-slot brushes

  • Adjustable gravity, flow speed, brush size, and zoom

  • 3 procedurally synthesized music modes: Rain, Magma, and Aurora

  • Procedural sound effects keyed to each material — no audio files, all generated in real time

  • One-button MP4 clip export (R to record, R to save)

  • Showcase cinematic mode (T) — the camera finds the most active region of your canvas and records it automatically

  • Save and load your canvas locally

  • 30 local achievements with progress bars and in-game toasts

  • Custom color palette and lobby theming

Early Access

Pixel Rain is in Early Access. The core simulation is fully playable and stable. Expect new materials, brush tools, and quality-of-life improvements as development continues. Feedback welcome.

System Requirements

Windows
macOS
    Minimum:
    • OS: Windows 10 64-bit
    • Processor: Intel Core i5-4460 / AMD Ryzen 3 1200 or equivalent
    • Memory: 4 GB RAM
    • Graphics: Any GPU with DirectX 11 support; integrated graphics OK
    • Storage: 300 MB available space
    • Additional Notes: Electron/Chromium-based app — a dedicated GPU is not required but improves simulation performance.
    Recommended:
    • OS: Windows 11 64-bit
    • Processor: Intel Core i7-8700 / AMD Ryzen 5 3600 or equivalent
    • Memory: 8 GB RAM
    • Graphics: Dedicated GPU with 2 GB VRAM (NVIDIA GTX 1050 / AMD RX 560 or better)
    • Storage: 500 MB available space
    Minimum:
    • OS: macOS 11 Big Sur
    • Processor: Apple M1 or Intel Core i5
    • Memory: 4 GB RAM
    • Graphics: Integrated graphics supported
    • Storage: 300 MB available space
    Recommended:
    • OS: macOS 13 Ventura or later
    • Processor: Apple M1 or later
    • Memory: 8 GB RAM
    • Graphics: Apple M-series integrated GPU or discrete GPU
    • Storage: 500 MB available space
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