Free Web Links

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.

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

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

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

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

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.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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.

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

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

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

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.

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.

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

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

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

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

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.

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

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.

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.

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

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.

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

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

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

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.

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

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.

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

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

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

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

Electromagnetic wave simulation. Created by Falstad.

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.

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

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

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

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

Simple lens simulation by MinuteLabs.

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

Simple light color mixing simulation, by Alex Larioza.

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.

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

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

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

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

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.

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

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

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.

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

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

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

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

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

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

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

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