Game Information

Developer: SZ Games

Rating:

3.7/5

Released: April 2024

Last Updated: June 2025

Technology: HTML5 (Unity WebGL)

Platform: Browser

Size: ~15 MB

Plays: 21,013

Mobile Support: Yes

About Occult Spreadsheet Synthesizer

Immerse yourself in the mystical world of "Occult Spreadsheet Synthesizer"—the indie game sensation that fuses old-school spreadsheet mastery with modern browser-based sound design. Designed for curious creators and challenging puzzle fans, this hard-level HTML5 browser game lets you summon spine-tingling synth tracks through a magical spreadsheet interface.

Forget everything you know about spreadsheets—here, each cell is a spell, each formula a melody waiting to be conjured. Drag-and-drop synthesis modules like "Sine" and "Play" as you wire together sonic circuits with your mouse, shaping eerie audio with every creative connection. Type values directly into the spreadsheet’s cells to modulate pitch, tempo, and much more. Try wiring up different combos to experiment with heart-pounding beats or strange, otherworldly soundscapes.

The hand-crafted retro visuals radiate indie energy, with every icon and wire designed for creative clarity. Each new sound you create feels like unlocking a hidden secret. Whether you’re a music production enthusiast or just love offbeat indie puzzles, you’ll be amazed at the depth and replayability. Occult Spreadsheet Synthesizer thrives on experimentation, rewarding those who dare to explore its enigmatic mechanics.

Puzzle-lovers will relish cracking the spreadsheet’s code, while audiophiles will savor the power to build synthwave, chiptune, or haunted ambient tracks from scratch, right in their browser—even on mobile!

With its one-of-a-kind blend of logic, creativity, and occult-inspired aesthetic, Occult Spreadsheet Synthesizer is more than a game—it’s a sandbox for your imagination. Play now, share your sound spells, and challenge your friends to conjure that legendary audio alchemy. Can you master the spreadsheet and unleash its sonic secrets?

How to Play

Begin your occult audio journey in Occult Spreadsheet Synthesizer by clicking and dragging modules around the play area with your mouse. Each module represents a sound component or control—like oscillators, modifiers, or the mysterious "Play" input. To create music, connect these modules by clicking on a connector point, dragging your mouse, and releasing on another connector to form a wire.

Start simple: drag a "Sine" generator module onto the grid. Wire its outputs to relevant columns—"Play" goes to column A of the spreadsheet, while "Pitch" should connect to column B. Type numeric values directly into the cells of each column; you’ll hear the sounds change as the values update the soundwave properties in real-time. Play with different numbers to discover new effects—every cell can become a note, an effect, or a rhythm.

You can trigger the module any time with the "Play" button—test your sound as you build! Experiment with wiring modules in unique sequences, combining generators, and using spreadsheet columns to introduce complexity and creativity. It’s a challenging sandbox—the more you play, the deeper the layers become. Mobile touch screens are fully supported: tap-and-hold for drag, and tap connectors to make instant connections. Use the in-game tutorial for visual guides as you master these occult audio rituals!

Controls

mouse

keyboard

Tips & Tricks

Experiment with wiring modules in unconventional patterns—surprising sounds await!
Use a wide range of numbers in the spreadsheet to discover rare audio behaviors.
Trigger the "Play" input manually to test modules before finalizing your connections.
Combine multiple generators for richer, layered synth effects.
Study the visual feedback: module colors and connector highlights give clues to active flows.
On mobile, zoom in for precision wiring and easier cell editing.
Document your favorite sound setups by taking screenshots and sharing with the community.

Game Features

Innovative spreadsheet-based sound design mechanics
Handcrafted retro visuals with a mystical, occult vibe
Complex, hard-level puzzles for creative minds
Real-time audio feedback—hear changes as you edit
Browser and mobile compatibility for play anywhere, anytime
Totally free (no downloads or signups required)
Supports experimenters—sandbox mode for endless music creation

Frequently Asked Questions

Is Occult Spreadsheet Synthesizer really free to play?

Absolutely—enjoy the full game online for free, directly in your browser. No downloads, signups, or fees required!

Do I need music production experience to enjoy the game?

Not at all! The game is designed for everyone—whether you’re a complete beginner or a seasoned synthesist, the intuitive interface guides you step by step.

Can I play Occult Spreadsheet Synthesizer on my phone or tablet?

Yes! The game is fully compatible with mobile devices. Drag, connect, and create music on the go with simple touch controls.

How does the spreadsheet control the music?

Each spreadsheet cell you edit sends its value to connected modules—affecting pitch, rhythm, and more. It’s a real-time fusion of logic puzzle and creative sound design.

Are there tutorials or guides for new players?

Yes! Scroll down in-game for a helpful tutorial, and look out for visual tips as you explore. The game rewards experimentation, and every discovery feels magical.