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Free Web Links

Play something in your browser right now! Just the simulations and games that are free and playable on the web.
If any links are broken, let me know.

Veloc-t in Space

Veloc-t in Space

Fly through the universe near the speed of light, and experience the relativistic effects of length contraction and time dilation. Can you make it to Andromeda in one raptor’s lifetime? Built by TestTubeGames.
Kid, Teen, Adult
Free
Web
Simulation
The Fittest 2

The Fittest 2

Crawling stick figure creatures evolve before your eyes. Created by TestTubeGames.

Kid, Teen, Adult
Free
Web
Simulation
Schwarzschild Trajectories

Schwarzschild Trajectories

A slick simulation of particles flying around a black hole. Created by Ricky Reusser.

Teen, Adult
Free
Web
Simulation
Periodic Three-Body Orbits

Periodic Three-Body Orbits

A nice interactive look at three-body orbits that repeat. Created by Ricky Reusser.

Teen, Adult
Free
Web
Simulation
Black Hole Hunter

Black Hole Hunter

Investigate the gravitational wave signals from colliding black holes. Created by Cardiff University. 

Teen, Adult,
Free
Web
Game
Metazooa

Metazooa

Like Wordle for animals, but instead of matching letters and words, you’re matching various orders/families/clades of animal classification. Created by Trainwreck Labs.

Teen, Adult
Free
Web
Game
Ray Optics Simulation

Ray Optics Simulation

Excellent web simulator for optics, with a wide range of lenses, mirrors, prisms, and other objects you can add. Created by Yi-Ting Tu.

Teen, Adult
Free
Web
Simulation
Space Elevator

Space Elevator

Scroll up on this webpage and take yourself higher and higher, exploring “What’s up there?” with fun cartoony graphics. Created by neal.fun.

Kid, Teen, Adult
Free
Web
Simulation
Particle Clicker

Particle Clicker

A humorous idle game about particle colliders and the physics process. Created by Biro, Babuschkin, Dungs, Novak, and Zhang.

Teen, Adult
Free
Web
Game
Gravity Simulator - TestTubeGames

Gravity Simulator – TestTubeGames

Fling planets and change physics in this gravity sandbox. Available in browser and for download. Created by TestTubeGames.

Teen, Adult, Kid
Free, Paid
Web, PC
Simulation
Gravity

Gravity

A simple gravity simulator for the web. Created by Hermann.

Kid, Teen, Adult
Free
Web
Simulation
Polarity Shift

Polarity Shift

Nice simple game about electrical attraction and repulsion – and hitting a target. Created by Universe & More.

Kid, Teen, Adult
Free
Web
Game
Black Hole Explorer

Black Hole Explorer

Explore the spacetime around a black hole in your rocket ship. Created by TestTubeGames.

Teen, Adult
Free
Web
Simulation
Falstad Gas

Falstad Gas

Particles bouncing around in a box, with lots of options for changing the setup. Includes thermodynamic quantities, too. Built by Falstad.

Teen, Adult
Free
Web
Simulation
Quantum Game

Quantum Game

A game that explores quantum mechanics, with an emphasis on quantum computing. Created by Quantum Flytrap.

Teen, Adult
Free
Web
Game
Loopy

Loopy

Investigate systems that interact, such as the predator-prey population dynamics and much, much more. Created by Nicky Case.

Teen, Adult
Free
Web
Simulation
HyperRogue

HyperRogue

A roguelike game set on a hyperbolic plane. Easier played than understood, I’d say. Created by Zeno Rogue Games.

Teen, Adult
Free, Paid
Web, PC, Mobile
Game
Circuit Simulator

Circuit Simulator

Surprisingly powerful tool for creating circuits and seeing their behavior, created by Falstad.

Teen, Adult
Free
Web
Simulation
Virus, the Beauty of the Beast

Virus, the Beauty of the Beast

An interactive video that lets you explore the math and patterns of virus structures. Created by Hamish Todd.

Teen, Adult
Free
Web
Simulation
Ripple Tank Simulation

Ripple Tank Simulation

Simulation for investigating waves and interference, with a bunch of customizable physics options. Created by Falstad.

Teen, Adult
Free
Web
Simulation
Gears

Gears

An interactive explorable about the physics behind gears. Created by Bartosz Ciechanowski.

Teen, Adult
Free
Web
Simulation
Iceberger

Iceberger

Simple simulation: draw an iceberg, and see how it will float in the water. Inspired by the idea that icebergs are often drawn incorrectly. Made by joshdata.

Kid, Teen, Adult
Free
Web
Simulation
Interactive Molecular Dynamics

Interactive Molecular Dynamics

Particle simulation that is great for exploring thermodynamics, or Newtonian mechanics, gas laws, etc. Created by Dan Schroeder.

Teen, Adult
Free
Web
Simulation
Gravity with Poisson Equation

Gravity with Poisson Equation

Cool look at gravity of many, many bodies, calculated on a mesh. Looks neat, too. Created by Ricky Reusser.

Teen, Adult
Free
Web
Simulation
Deep Sea

Deep Sea

Scrollable explorer where you can see what’s in the deep ocean, the deeper you go. By Neal.fun.

Kid, Teen, Adult
Free
Web
Simulation
Bicycle

Bicycle

Long blog post about the physics behind bicycles. Full of interactives, and very cleanly done. Covers an absurd amount of mechanics. Created by Bartosz Ciechanowski.

Teen, Adult
Free
Web
Simulation
Physion

Physion

Build tons of 2D physics simulations with this free resource. Easy to check out, tons of cool stuff you can do with it. Created by Dimitris Xanthopoulos.

Teen, Adult, Kid
Free
Web
Simulation
The Qubit Game

The Qubit Game

An idle game based on quantum computing, where you build up from one Qubit to a full working quantum computer. Created by Doublespeak Game.

Teen, Adult
Free
Web
Game
Fluid Simulation

Fluid Simulation

A beautiful simulation of a fluid that’s quite fun to play with. Mesmorizing… Built by Pavel Dobryakov.

Kid, Teen, Adult
Free
Web, Mobile
Simulation
Chromoscope

Chromoscope

Simple tool for exploring the night sky at different wavelengths of light. Built by Lowe, Simpson, and North.

Teen, Adult
Free
Web, PC
Simulation
If the Moon Were Only 1 Pixel

If the Moon Were Only 1 Pixel

A to-scale model of the solar system in a browser window. Created by Josh Worth.

Kid, Teen, Adult
Free
Web
Simulation
Quantum Roulette and the Nature of Reality

Quantum Roulette and the Nature of Reality

A look at the quantum mechanics behind Bell’s Inequality, using a casino as an example. Built as a long blog post with many interactives along the way. Created by Adam Becker.

Teen, Adult
Free
Web
Simulation
Fe[26]

Fe[26]

A variant of the game 2048, where the tiles are fusing elements in a star. Created by Dimitar Dimitrov.

Teen, Adult
Free
Web
Game
The Life Engine

The Life Engine

Pixel based simulation of life, where each color represents a type of cell for the organism. Over time organisms evolve in their virtual environment. Created by Max Robinson.

Teen, Adult
Free
Web
Simulation
Black Hole Launcher

Black Hole Launcher

A simulation of the spacetime around a Schwarzschild black hole where you can fling astroids and light to your heart’s content. Created by TestTubeGames.

Teen, Adult
Free
Web
Simulation
Deflection of Light in Schwarzschild Spacetime

Deflection of Light in Schwarzschild Spacetime

Basic and easy-to-use simulation for light curving around a black hole. Created by Thomas Müller.

Teen, Adult
Free
Web
Simulation
Reaction Diffusion System

Reaction Diffusion System

Fun toy that lets you play with a Reaction Diffusion System, a simulation that easily makes interesting patterns and has a connection to how biological systems grow. Created by pmeila.

Kid, Teen, Adult
Free
Web
Simulation
Chaotic Pendulum

Chaotic Pendulum

A customizable toy of a double pendulum. Created by MinuteLabs.

Teen, Adult, Kid
Free
Web
Simulation
Fireflies

Fireflies

The math of how Thai fireflies time themselves. Created by Nicky Case.

Teen, Adult
Free
Web
Simulation
Crescent Loom

Crescent Loom

A nervous system simulation game, where you build brains to control creatures. Created by Olive.

Teen, Adult
Free, Paid
Web, PC
Game
Griddle

Griddle

Small wordle-esque game where you’re trying to guess which country is represented, based on its sources of electricity. Fun way to learn about the energy supplies of the world. Created by Jo Melville.

Teen, Adult
Free
Web
Game
What is a Day

What is a Day

What is a day, actually? Part video, part simulation, all interesting. Created by Jasper Palfree.

Kid, Teen, Adult
Free
Web
Simulation
Google Doodle CuPd

Google Doodle CuPd

Fun google doodle where you match atomic elements up on dates, and their level of ‘attraction’ is based on the atomic attraction those elements would feel.

Kid, Teen, Adult
Free
Web
Game
Mass Energy Scale

Mass Energy Scale

Scroll down the page and explore what energies match what masses, according to the famous equation E=mc^2. Created by MinuteLabs.

Teen, Adult
Free
Web
Simulation
Bond Breaker 2.0

Bond Breaker 2.0

Explore the atomic realm in this game about molecular bonds. Created by TestTubeGames.

Teen, Adult, Kid
Free
Web, Mobile
Game
Evolution

Evolution

Draw the bones and muscles for your stick-figure creatures, and evolve them into better racers. Built by Keiwando.

Teen, Adult
Free
Web
Simulation
Nand Game

Nand Game

Build a computer from scratch in this puzzle game that teaches you actual programming and computing concepts. Created by Olav Junker Kjær.

Teen, Adult
Free
Web
Game
EM Wave

EM Wave

Electromagnetic wave simulation. Created by Falstad.

Teen, Adult
Free
Web
Simulation
XXY Oscillocsope

XXY Oscillocsope

Web based oscilloscope, with a variety of settings to explore, among them the ability to use your microphone to input the wave pattern. Created by Neil Thapen.

Teen, Adult
Free
Web
Simulation
Gravity Simulator - Huffman

Gravity Simulator – Huffman

Very cool 3D astronomical simulations, running right in the browser. Created by Darrell Huffman.

Kid, Teen, Adult
Free
Web
Simulation
Sine Rider

Sine Rider

A game where you use math equations to create the proper slopes for sledding. Created by Chris Walker.

Kid, Teen, Adult
Free
Web
Game
Kerr Spherical Photon Orbits

Kerr Spherical Photon Orbits

An explorable explanation of the orbits around a spinning black hole. Created by Dr. Leo Stein.

Teen, Adult,
Free
Web
Simulation
Entropy Explained, With Sheep

Entropy Explained, With Sheep

Blog post about Entropy, full of interactive simulations. Written clearly and understandably, also with sheep. Created by Aatish Bhatia.

Teen, Adult
Free
Web
Simulation
Convex Lenses

Convex Lenses

Simple lens simulation by MinuteLabs.

Teen, Adult
Free
Web
Simulation
Wavemaker

Wavemaker

A game about making waves, literally, and doing your best to match various patterns. Created by Universe & More.

Kid, Teen, Adult
Free
Web
Game
RGB Color Sim

RGB Color Sim

Simple light color mixing simulation, by Alex Larioza.

Kid, Teen, Adult
Free
Web
Simulation
Interstellar

Interstellar

Have you ever wanted to walk backward into a black hole? Fly through a wormhole? Now’s your chance in this relativistic simulation. Based on the setup in the movie Interstellar, and created by sirXemic.

Teen, Adult
Free
Web
Simulation
Emoji Simulator

Emoji Simulator

Basically lets you recreate The Game of Life, but with emoji and any rules you’d like to put in. Created by Nicky Case.

Teen, Adult
Free
Web
Simulation
Velocity Raptor

Velocity Raptor

A special relativistic game where a dinosaur travels near the speed of light. Created by TestTubeGames.

Teen, Adult, Kid
Free
Web
Game
Why do Astronauts Float?

Why do Astronauts Float?

A playful look at the science behind ‘floating’ in space. Created by TestTubeGames.

Teen, Adult, Kid
Free
Web
Game
The Eye

The Eye

Some interesting simulations about how eyes work to see the world. Created by Ala’, Andrew, Jason, Peter, and Tanya.

Teen, Adult
Free
Web
Simulation
The Hunt for Dark Matter

The Hunt for Dark Matter

Explore how Gravitational Lensing can be used to find Dark Matter. And as a bonus there’s a game at the end! Created by Shaun Hotchkiss.

Teen, Adult
Free
Web
Game
The Electric Shocktopus

The Electric Shocktopus

Electromagnetic game where your character can charge themselves to move around the levels. Created by TestTubeGames.

Teen, Adult, Kid
Free, Paid
Web, PC
Game
Sandboxels

Sandboxels

A simulation of falling sand and so much more, a surprising amount of physics built into this toy. Created by the R74n Collective.

Kid, Teen
Free
Web
Simulation
Ancient Earth

Ancient Earth

See a globe of earth, but back in history, millions of years ago. Watch the techtonic plates move, and see where in Pangaea your house was.

Kid, Teen, Adult
Free
Web
Simulation
Eclipse Explorer

Eclipse Explorer

Simulate solar eclipses, even on other planets and with other moons. Created by MinuteLabs.

Kid, Teen, Adult
Free
Web
Simulation
E-Field Simulation

E-Field Simulation

Easy-to-use simulator for modeling electric fields around point charges. Created by Ithaca College.

Kid, Teen, Adult
Free
Web
Simulation
Crack the Circuit

Crack the Circuit

Great game about recreating circuits based on a mystery setup. Good for testing knowledge about circuits. Created by Universe & More.

Kid, Teen, Adult
Free
Web
Game
States of Matter

States of Matter

Investigating molecules bouncing around in a piston in various states of matter. Good thermodynamics simulations by PhET.

Kid, Teen
Free
Web
Simulation
Circuit Construction Kit

Circuit Construction Kit

Nice tool for easily creating and testing simple circuits, built by PhET.

Kid, Teen
Free
Web, Mobile
Simulation
Swing Explorer

Swing Explorer

A simulated swing, with some tools for exploring the physics behind pumping your legs. Created by TestTubeGames.

Kid, Teen, Adult
Free
Web
Simulation
Let's Learn About Waveforms

Let’s Learn About Waveforms

An interactive blog post about waves, their shapes, adding them together, and harmonics.

Teen, Adult
Free
Web
Simulation
Metaflora

Metaflora

Like Wordle for plants – learn about the wild world of plant classifications. Created by Trainwreck Labs.

Teen, Adult
Free
Web
Game
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