Casual fun with Physical Chemistry! Most days you are a billions of protons — today you get to be one. As a single proton, you’ve got a lot to learn. But with luck and determination, you may just grow into a molecule.

This game is grounded in real science, developed in collaboration with scientists at the NSF-funded Center for Chemistry at the Space-Time Limit at UC Irvine. Use real forces to stick atoms together – and real tools to break them apart!

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For those of you who are interested in a bigger challenge, check out these levels that were created as part of the Bond Builder Contest. (It's still going until October 29th, so feel free to create some levels that might be added to the official game... or just to share with your friends. Whatever!)

Love Story:
[Bond Breaker: 0q3c3f3m350w3j3k3f3i3p1q343f0w3p3f3l0w33383f3f3j350w3k3f0w0m0v313p0w3n393k380w38353i1v1q1h1h1h2t1h1h1r1h181h1h181i38161g1g161g0i161a1a1e1e19191g1g3n1h3838163131161g1g5w0h0f1h1h1h1h3t1h1h1t1g181p181h1h1g180w1k041p1g1l1g1h1w0a041l181h1h1j3w06021a191e1w02051j1j1a1e191a0w020c1h181h1p182u2u1h1h161h1h2u6w0106021p1p1h1w0h6w0206021a1a1h1w0h011e1e2w060219191h2w0h003c3w0h0w060w0h03181h1o18]

Stuck:
[Bond Breaker: 063j3k3l333b1q3j2w050n1h1h1h1h2t1h181m181j181l181h1i1j1j1616161e1a191e3w020b1j1h1g1g1g1616161j311j370w010c1j1j1a1j1h1h1h1h3t16161j190w0b021e1j160w07041h1n1g1n1h0w171w0f00190w130f1e1j1h181k181l1g1g1g1g191g1a1g1j0w18081h1g181h1j181e191j1w08051k181e1j3s1h1w07041d1h1h2u1h6w0501031h1h1p1h6w050103181l1l18]

Find more user made levels here: http://testtubegames.com/forums/viewtopic.php?f=11&t=226