Bond Breaker


Dive right into the newest FREE version of Bond Breaker 2.0 for Educators with Next Generation Science Standards aligned lesson plans available online, Apple, and on Android devices. You’ll have to manipulate protons, molecules, laser light, and more to solve the challenges that await you. A fun and exciting way to learn as a team of scientist at the CaSTL Center help you navigate your way through the joys of physics and chemistry.


Lesson Plans:

Middle School

MS Lesson 1 Van der Waals Forces

MS Lesson 2 Chemical Reactions

MS Lesson 3 Thermal Energy and States of Matter

High School

HS Lesson 1 Repel or Attract

HS Lesson 2 Attraction between Water Molecules

HS Lesson 3 Heat Transfer



Pit yourself against atomic physics in Bond Breaker, a new puzzle game based on real nano-scale science.  Available here on the web, or on your iPhone and Android devices.

You start this game in the smallest way possible - as a single proton. You don’t even have an atom to call your own.  Learn what it takes to be a proton, experience subatomic forces, and with luck and determination, grow into an atom of your own. Collide atoms together into molecules, or break them apart again using lasers, tunneling microscopes, and heat.

Created by TestTubeGames and scientists at the CaSTL research center at UC Irvine, this is truly the most accurate physics engine to date. After all, what other game is correct down to the atomic level?  When you make and break molecular bonds, you’ll encounter real forces and real physics.  You won’t just be learning how to beat challenging puzzles, you’ll truly be gaining a new understanding of the atomic world.

This isn’t just simple stuff, either!  While the game assumes no prior knowledge, by the end, you’ll have an understanding of:

      - Atomic Energy Levels
      - Light Absorption
      - Muons, and their crazy effect on atoms
      - Morse Potentials
      - Plasmonics: a way to focus light more precisely than a laser
      - ...and way more
 Simply put, this is the most fun you can have without buying your own Scanning Tunneling Microscope!

Want to know more about the Science?
Follow the links to ‘learn more’ in the game, or go here to check out some deeper explanations of what’s going on in the game.

Questions?  Comments?  Bug reports?  Stumped on a level? Send an email to