Pixelsphere is a 2d-sidescroller with an interactive musical soundtrack. Get ready for classic platformer action, exploration, physics & music puzzles, and of course, pixel art! 100% free game & soundtrack!
HTML5
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HTML5
Play now! Chrome / Firefox / Edge / Safari
HTML5
Stream the Pixelsphere soundtrack
Updated May 2026 - HTML5 Pixelsphere build is online
5/6/26 UPDATE: Pixelsphere, formerly a Flash/AIR game, has now been converted to HTML5 and launches in the browser. It is playable and still in progress; unlimited double jumps and click-to-teleport are available when a level needs a helping hand.
Updated January 2020 - Introducing "Relax Moods"
1/28/20 UPDATE: Stream more than 15 hours of music in your browser at relaxmoods.com.
12/16/17 UPDATE: YouTube Channel updated! new music :) featuring Julie - many good updates :)
Please consider a donation in 2017 to The Cynic Project to sponsor future project!! --- added section to donate/support The Cynic Project
Did I say "bitcoin?" no. I didn't say bitcoins.
5/29/17 UPDATE: Play Pixelsphere in HTML5: the old plug-in builds have been replaced with the current browser version.
Read more about the Pixel Perfect version:
4/14/17 UPDATE:Pixelsphere is complete! The game and soundtrack are 100% free! Thanks everyone for your support!
4/7/17 UPDATE: The Soundtrack is ready!! Download or stream it now!
4/18/17 UPDATE: Watch me play Pixelsphere! Gameplay A and B videos are live on YouTube. Video C features music contraptions!



You might have heard of me as The Cynic Project. My song Matrix ][ achieved six million downloads on mp3.com back in 1999. I'm fascinated by the hidden beauty encoded in deterministic processes and stuff like fractals, cellular automata, generative music, and emergent behavior.

Music, the central feature in Pixelsphere, underpins the pitched sound effects in the game.
Scores of mallet percussion tones, as well as physically-modeled sound effects, sit within the game soundtrack. These sounds are perfectly tuned and balanced to complement the background music in Pixelsphere.
Try listening to in-browser game idly, like a streaming music player. When idle, the complete in-game soundtrack plays in the background while you use your computer.

My wife Julie, has magical properties about her voice and music.
Julie brings science to the game. You're sure to enjoy her beautiful voice on the soundtrack.

Welcome to Pixelsphere! Sit back and listen to the music!
Interact with physical objects like bouyant crates, rolling balls, elevators, bouncy springs, and even a monster truck! All of my favorite staples from Super Mario World and Sonic the Hedgehog are featured in Pixelsphere's 30 levels. Fight baddies and manipulate gravity to solve puzzles, all while making beatiful music with each step.
Objects in Pixelsphere feature hand-drawn pixel art, modeled by hand-aligned physics, backed by the Box2D physics engine.

...4/15/17 - New Musical Contraptions Demo!

Two hours of relaxing ambient and electronic music
The Pixelsphere soundtrack is calm and relaxing...The most exciting aspect of the soundtrack is the dynamic music generation system. Each time you collect an item, you'll hear procedurally generated sequences, pre-programmed melodies, and arpeggios. These sounds blend beautifully with the background music to create a lush atmosphere and unique experience each time you play.
The 30 levels in Pixelsphere feature bouncing balls, weightless orbs, and other physical systems which trigger tones & melodies. Some systems must be played in a precise order to decrypt hidden messages. I work in a variety of styles like ambient/new age, progressive trance, house, orchestral/movie music, and chiptunes.

The pixel-perfect version features some slight modifications to the game:
in ALEVEL newSimulationEnabled = (d(physicsObject.x, physicsObject.y, heroX, heroY) < 1200) ? true : false; // 1200 instead of 900 in pixel perfect versionzoomFactor = 1.0Consequently, you can see more of the game at once, which isn't exactly how I intended the game to look. As well, it requires a little more CPU power.
Play Pixelsphere HTML5!
Chrome / Firefox / Edge / Safari

1280x720 viewport
h o u r s   o f   m u s i c   +   +   g a m e p l a y
HTML5
Play now! - Chrome / Firefox / Edge / Safari

Music & assets licensing available, music on commission
cynicmusic@gmail.com
Donate to support The Cynic Project. I am currently collecting for purchase of FL Studio, Spectrasonics Keyscape, and Spectrasonics Omnisphere 2, as well as a new computer and audio interface.
Pledge $5, $20, $50, or $100 (platinum sponsor) with the donate button below
Paypal, Patreon, Spare crypto only, please. Your support helps fund new music gear, and to support the software I use. Most of the Pixelsphere Kickstarter proceeds were used to purchase software.
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ultimate or get in touch.
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Pixelsphere contains many assets created exclusively by Alex Smith, but the foundation is essentially built from the community, using many open source assets and technologies.


[=---------------------------------------------------------------------=]
PIXELSPHERE by Alex Smith (`=-THE CYNIC PROJECT-=')
*** Music & Sound & Art & Code & Levels & Design by Alex Smith ***
[=---------------------------------------------------------------------=]
[=---------------------------------------------------------------------=]
Pixelsphere Gameplay Overview
[==================================]
GAMEPLAY:
-- FIRE orb to activate SWITCHBLOCK
-- UP/DOWN/NEUTRAL while firing (C) to adjust orb angle
-- DOWN while running to slide
-- Hit SWITCHBLOCK with your head, feet, or your orbs
-- Hit MUSIC BLOCKS in the correct order to solve MUSIC PUZZLES
-- Touch CAR WHEEL to ride car
-- Press UP to exit car
-- Hop on elevator to ride
-- Hop on baddy to kill
-- Unlimited double jumps and click-to-teleport are available while the port is in progress
-- Springs, water, crates, coins, baddies, and teleporters are partially restored in HTML5
[==================================]
CHARACTER ATTRIBUTES:
-- AXL = narrow FOV, short jump. normal jump sounds.
-- TREMOLO = wide FOV, high jump, jump is TOO high often, rare special jump sounds.
[==================================]
MENU COMMANDS:
-- M toggles audio
-- G toggles debug view
-- Level select is available at the top of the game screen
[==================================]
QUIRKS:
-- When exiting MENU, you may have to click on the game before you can use the keyboard again.
[==================================]
PERFORMANCE TIPS:
-- Lower your monitor resolution
-- Don't use full screen
-- Don't use window maximize
-- Keep particles off
-- Close extra browser tabs if audio or level art stutters
[==================================]
SOUND MIXER:
There are three audio streams:
(MUSIC, SFX, ENVIRONMENT)
-- You may adjust the balance of the 3 streams in the MENU. Recommended settings are based on your gameplay style:
-- Speedrun (100/50/100)
-- Slowplay (100/100/100) *default
-- Collector (80/100/100)
-- Musician (0/50/100)
[==================================]
MUSIC SOUNDTRACK & GAMEPLAY PACING:
-- The Pixelsphere music playback position resets to the current level every time you close the game.
Your progress is saved. Thus playing the game in limited sessions will reward you with a full soundtrack experience!
The music evolves over time however this music is best saved for the later levels after 20+

The realm of Hexatonia was thought of as merely legend and folklore by the vast majority of modern civilizations on Pixelsphere. Legends speak of a curious insect-like Hexatonian race that communicated using beautiful music on a six-tone scale, the echos of which linger throughout the land to create a serene, ever-present melody that seems to hang in the air. Legend warned that these sounds were sweet enough to lure some non-Hexatonians away, completely entranced, never to return. ...
After dedicating his life to Hexatonian anthropology and the search for Hexatonia, Axl's father Maestro finally found the location of this fabled land. With proof of Hexatonia's existence, he then began work on a device called the Hexatonian Universal Translator (HUT) that would allow him to walk among his beloved specimens safely. The HUT serves to decode the knowledge and wisdom accumulated by the Hexatonians. In theory, the full, entrancing effects of the Hexatonian landscape would be filtered through the HUT before reaching the ears, allowing the non-Hexatonian wearer a safe yet still enjoyable stroll through the land. One day, Axl noticed his father was taking an unusually long stroll and decided to search for him. When he found the HUT lying on the ground just outside the Hexatonian border, he knew something was wrong. Maestro would never cast aside his prized invention so carelessly. Armed with his father's device, Axl sets off to find and retrieve his father from the fascinating land that threatens to consume him.
The story unravels as you discover the narrative of the Hexatonians. Their language consists of musical tones, and is expressed by the tension and resolution of phrases, intervals and chords. Musical markers placed throughout their world are equivalent to our "letters", but only amount to gibberish until played in a precise order.
Is it pixelsphere or pixel sphere? nobody really knows. Is this SEO on pixel sphere?, or, for anyone searching for "pixelsphere",can they go ahead and stop misspelling it as pixel sphere? thanks!! Even if you're drawing a sphere made out of pixels, everyone likes pixelsphere music! ~alex

Pixelsphere is best played at 60fps. The current browser build is HTML5 and no plug-in is required.
chrome://settings > show advanced settings > scroll down to system > check "Use Hardware acceleration when available"
Open https://pixelsphere.org/game/ and click once so the browser can enable audio.
visit chrome://site-engagement and see how your engagement measures up. Try and engage more?
Use current Edge with hardware acceleration enabled. No browser plug-in setting is required.
For the desktop version, a universal fix for low framerate is changing your system screen resolution to 1280 x 960 resolution. Full screen performance may be poor. Works well on Mac and high performance PCs. Let me know how it works on your system, and send me your system specs (OS, browser, screen resolution, CPU/RAM)
[==================================]
