In-browser falling-sand simulation game with over 500 elements and thousands of reactions.
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slweeb efa7fa0cf3 Version 1.13 - December 17, 2025 - Gizmos & Gadgets
+ Filter
    + Only allows the first element it touches to pass
+ Gate
    + Only allows pixels to pass if electrified
    + Only conducts electricity into itself and Wire
+ Canvas background images
    + Some presets and custom image URLs
+ Outline View (Press 5)
+ 2-wide and 4-wide brushes
+ Ruler tool in Special to measure lengths and angles
+ Manual element control
    + Shift-clicking certain element buttons prompt the user for more information
    + Erase tool allows only deleting certain elements
    + Cloners allow multiple comma-separated elements
    + Filters allow states (solid, liquid, or gas) or multiple elements
    + Sensors allow sensing specific elements
    + Portals allow the setting of channels
    + Void allows only deleting certain elements
    + Random tool allows pre-selected element choices
    + Explosion allows custom radius
    + Antibombs allow pre-selected explosion elements
~ Replaced LED Red, Green, and Blue with a single customizable LED
    ~ LEDs in old saves are automatically converted to the new element
- Merged Superheaters and Freezers with Heaters and Coolers
    + Heaters can be heated to heat the same as a Superheater
    + Coolers can be cooled to cool the same as a Freezer
- Removed Tesla Coil and Shocker
    ~ These elements in old saves are automatically converted to E-cloners
~ Drag tool is faster and smoother
~ Pixelated and colorful button borders
+ Translations for Swedish
+ Parital translations for Japanese, Thai, Arabic, Hebrew, and Viossa
[Changes]
+ Pipes can transport pixels directly with Filter and Gate
~ Pipes no longer conduct heat
~ Brightened blue stage in Pipes
~ Incomplete pipes darken after being initialized
+ Oxygen can be used to dispose Molten Lead in reactors
+ Electrolysis of raw Salt
+ Smashing hot Cooked Meat releases Grease
+ Worms can compost Lettuce, Tomato, Corn, Pickle, and Bread
+ Rats can eat Spiders
+ Caramel and Herb make peppermint-colored sugar
+ Baking Soda can be made with Lye and Carbon Dioxide
+ Melting Ash with Dirt creates Tuff
~ Poison Gas no longer makes Slag from molten elements
~ Perfume can exist at room temperature
~ Acid doesn't dissolve Mercury or Diamond
~ Sulfur ignites when hot
~ All Cloud types can be smashed like Rain Cloud
~ Thermite burns into less Iron
~ Rock Wall deletes Light when placed over it for better eclipses
- Removed Gallium-Sodium reaction
~ Copper Sulfate reacts with more carbs
~ Rainbow recipe uses Pointer instead of Flash
~ Bless deletes Strange Matter instead of turning it into Neutron
+ Static recipe
+ Malware can mix with some metals to create machine parts
+ Tea stains Paper
+ Unique fire color for Tin
~ Element buttons are consistently spaced on all sides
~ Recolored Pyrite
~ Acid has a smoother texture
~ Purple Gold is slightly more purple
~ Hyphae and Lichen are grainier
~ Recolored Random button
~ Recolored Balloon button
~ Recolored Confetti button
~ Recolored Hair button
~ Recolored Pistil button
~ Reordered colors in many buttons for consistent "lighting" look
~ Rice, Candy, Nut Oil, Dye, Rainbow, and Spray Paint buttons display with dark text
+ Firefly alias 'Lightning Bug'
~ Shortened hiding setting labels
~ Language should automatically be set from browser preferences (Untested)
~ Re-saving after saving automatically fills in name, author, and description
~ Save browser thumbnails are crisper
~ Steam Deck compliance
[Technical]
+ 'onShiftSelect' element property, called when selecting element while holding Shift
+ 'onlyConduct' element property, list of the only elements to conduct electricity into
+ 'renderTool' element property, renderer function called once per frame while selected
+ 'updateOrder' element property, prioritizes (positive) or deprioritizes (negative) tick order (integer; default 0)
+ autoResizeRatio(height,width) function (e.g. (16,9))
~ 'shiftDown' variable is set even when in a menu
[Bug Fixes]
~ Fixed: Placing Humans with Replace Mode causes a gory mess
~ Fixed: Using Human on Cloners cause a gory mess
~ Fixed: Bottom pixels can be cut off on certain window sizes
~ Fixed: Line-drawing preview is opaque when using a theme
~ Fixed: Text in Debug popup can't be selected
~ Fixed: onClicked passes "unknown" when no element is selected, now passes null
~ Fixed: onMouseDown doesn't get called on mobile
~ Fixed: onMouseDown is called when clicking out of a menu
~ Fixed: Using Heat Ray on Stained Glass can make Rainbows
~ Fixed: Saves with pipes containing invalid elements fail to load
~ Fixed: Some Fireflies stay illuminated after hitting another
~ Fixed: Liquid/gaseous pixels with 'skip' property can be displaced by denser pixels
~ Fixed: Salt isn't considered a food and can't be eaten by Humans
~ Fixed: Corn can't be dragged or put into Pipes
2025-12-17 12:08:39 -05:00
.github Update CONTRIBUTING.md 2025-09-01 17:23:43 -04:00
archive page update 2023-12-19 13:27:32 -05:00
backgrounds background images 2025-12-11 18:26:46 -05:00
fonts Sandboxels v1.9.5 - Update of the Summer 2024-05-15 12:53:21 -04:00
icons Update cover-3840x1240px-text.png 2025-07-31 16:47:54 -04:00
lang Version 1.13 - December 17, 2025 - Gizmos & Gadgets 2025-12-17 12:08:39 -05:00
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scripts Version 1.11.1 - April 1, 2025 - FOOLS-2-5 2025-04-01 11:52:52 -04:00
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README.md

Sandboxels

A falling sand simulation game with hundreds of elements, heat simulation, chemical reactions, fire, density, electricity, and more.

Play for free at Sandboxels.R74n.com.

Join the Discord server.

Landscape made in Sandboxels

Modding

New to modding? Read the Sandboxels Wiki articles on getting started with modding or publishing your mod.

Please read the Contribution Guidelines before submitting your mod.

Controls

  • Left Click = Draw pixels
  • Right Click = Erase pixels
  • Middle Click = Pick element
  • Space or P = Pause simulation
  • Shift + Heat/Cool/Shock = Intensify effect
  • Shift + Click = Draw line
  • Scroll or +- or [] = Change cursor size
  • ←→ = Change category
  • E = Select by name
  • I or / = Element info
  • \ = Open settings
  • > = Single step
  • F or F11 = Fullscreen
  • 1234 = Change view
  • F1 = Toggle GUI
  • C or F2 = Capture screenshot

(Alt/Option can be used in place of Shift)

Button Info

  • Pause = Pause/play the simulation
  • Step (>) = Run a single frame
  • Minus (-) = Decrease the cursor size
  • Plus (+) = Increase the cursor size
  • Reset = Clears the entire simulation
  • Replace = Overrides pixels when placing
  • E = Select any element by name
  • TPS = Change how fast the simulation runs
  • Info = Open the element info screen
  • Saves = Open the Save & Load menu
  • Mods = Open the Mod Manager
  • Settings = Open the settings menu