Smooth terrain and fluids
Terrain avoids a block-grid look. Water and lava use smoothed surface depth, per-vertex transparency, and continuous normals.
Alpha 0.0.13a_03 · Standalone browser simulation
Shape a world that responds.
A smooth-terrain sandbox where building, fluid flow, structural behavior, and STEM experimentation meet in one browser-native world.
No installation or password required. Desktop and touch controls included.
FLUID SURFACE
Smooth interpolation
EDIT RESOLUTION
1 cm minimum
Continuousterrain surfaces
AdaptiveSTEM mentors
Material-awaresimulation
Portablestatic website
Built for experimentation
A sandbox with systems underneath.
Every feature is designed to make cause and effect visible while you build, test, fail, and try again.
Build and break directly
Left click removes terrain and right click places the selected material. Hold either button to grow the edit from a 1 cm minimum.
Learn through play
Nonverbal human mentors demonstrate STEM ideas through structures, formulas, and challenges that respond to player evidence.
Infinite Sandbox is an experimental educational game. Its engineering-inspired behavior is not certified analysis and must not be used for real-world safety decisions.
Player field guide
Start building in three steps.
Enter the simulation
Open the game, wait for all six world-generation stages, then click the landscape to capture the mouse.
Choose a material and brush
Press a number key to choose material. Press C to cycle round, square, and triangular editing shapes.
Edit, observe, iterate
Left click to break and right click to place. Hold longer for a larger edit, then watch the simulated material behavior.
Desktop controls
Everything at your fingertips.
Press H for contextual hints. Press Esc to free the mouse and open the simulation menu.
Launch the game- W A S D
- Move
- Mouse
- Look around
- Space
- Jump
- Left click
- Break terrain
- Right click
- Place material
- Hold click
- Increase edit size
- C
- Cycle brush shape
- 1 / 2 / 3 / 4 / 6
- Select material
- F
- Cycle render distance
- H
- Toggle tutorial hints
- Esc
- Open simulation menu
- Enter
- Save a level.dat file
Playing on a phone or tablet?
Drag the left joystick to move, drag open terrain to look, and use the on-screen controls. Lower the render distance if performance slows down.
Build in public
Follow the experiment.
Join the development community for technical updates, screenshots, terrain-generation notes, and feedback threads.