• Register


Our hero, the titular Shocktopus, is out for revenge against the Magnetic Yeti. Its a dangerous world, but our little Cephalopod has a trick up one of his eight sleeves: he can change his electric charge at will. Zoom across electric fields, twist through magnets, and use conductors to bend the world to your will.

Never has the Right Hand Rule involved so many tentacles!​

The game is based on the actual physics of Electromagnetism -- which means you'll be an expert in the topic by the end. Or, well, you'll have beaten a game. And isn't that enough?


This game has a Level Editor, and as the developer of the game, I see it as my duty to prove I can beat any level players throw my way. So roughly each week, I load up a level and record myself trying to beat it. You can watch my suffering (and joy) in the Feel Bad Friday video series!


  • Accurate Physics from a pedant you can trust
  • Electric charges that attract and repel you
  • Magnetic fields that cause you to spin according to Lorentz Forces
  • Conductors that warp electric fields, calculated using the Relaxation Method
  • Electric currents that lead to magnetic fields, via the Biot-Savart Law
  • 44 Levels of fun! Plus one level of pure torture.
  • A Level Editor so you can make all your own levels, or do your own physics experiments.
  • A whole bunch of spikes and missiles.
  • The game comes with a virtual Voltmeter and electric field meter.
  • One more opportunity not to learn the Right Hand Rule!


Made by TestTubeGames, or more specifically me, Andy Hall. I run an indie game studio that's devoted to making fun, interactive science experiences. Special Relativity, Particle Physics, Gravity, you name it, I'm interested!

Music was created by Brian Allen Holmes, and SFX were made by Kevin Notar.

  • View media
  • View media
  • View media
  • View media
  • View media
  • View media
Post article Articles

No articles were found matching the criteria specified. We suggest you try the article list with no filter applied, to browse all available. Post article and help us achieve our mission of showcasing the best content from all developers. Join now to share your own content, we welcome creators and consumers alike and look forward to your comments.

Post a comment
Sign in or join with:

Only registered members can share their thoughts. So come on! Join the community today (totally free - or sign in with your social account on the right) and join in the conversation.

You may also like
Shootout on Cash Island

Shootout on Cash Island

Platformer

It's an retro action platformer and also a side story to Hot Guns game.

Angel in Danger

Angel in Danger

Platformer

Run and jump through 4 Worlds all packed with different and carefully designed levels.Find awesome power-ups to help you fight all of the enemies and...

VRog

VRog

Platformer

Be a frog! Your VR headset is your window to the VRog world, allowing you to see through the eyes of a frog. Leap your way across the beautiful pond and...

Top Hat

Top Hat

Platformer

You really like Top Hats. Especially that golden one. One day, a strange guy came to our hero's house. He said, that he can buy the special golden hat...

Plee the Bear

Plee the Bear

Platformer

Plee the Bear is a platform game in which you play an angry bear whose son has been kidnapped by god. Here is a guy hard to brave! Jump in this amazing...

Cat Mario 2

Cat Mario 2

Platformer

And we're back! Daka and I decided to publish the second part of this wonderful game we all love :) added new enemies, new blocks and a completely revamped...

Twitter

Latest tweets from @testtubegames

One million asteroids T.co

Jun 7 2021

150,000 asteroids T.co

Jun 5 2021

Three star clusters T.co

Jun 5 2021

Working on optimizing Gravity Simulator -- so here's 20,000 planets: T.co

May 12 2021

The new version of Agent Higgs is still under development, but I'll share this gif of me creating a neutron...... f… T.co

Apr 18 2021

Agent Higgs is getting a major upgrade. Neutrons, Protons, and Quarks are among the new additions coming soon. T.co

Apr 7 2021

RT @sciplayground: A simulated swing, with some tools for exploring the physics behind pumping your legs. And, oddly, you may emerge m… T.co

Mar 6 2021

RT @sciplayground: Black Hole Hunter: Investigate the gravitational wave signals from colliding black holes. Did you find signal… or d… T.co

Feb 27 2021