Algodoo

Monopoles, but they are squares, thus interactions are less predictable and more interesting than circles.
They legitimately form ionic molecules, just subtract the number of red squares from the green ones to get the sum charge.
And the ions act very similar to the individual particles, albeit more...inertially inert?

Started taking a course on chemistry, and decided on a whim to make this as a pseudo-algo-chemistry sim.

thamks bai x [the fitnessgramm pacer test is a multi st-]