Algodoo

A mechanical computer made of 16 memory cells solves the Tower of Hanoi puzzle, with the help of a marble-controlled robot arm. As usual, no scripting.

The algorithm is simple, but I'm not sure what resource I consulted, and the Wikipedia page on Tower of Hanoi is difficult to understand. If you pan to the right, you'll see the hardcoded solution, and maybe you can recognize the pattern that the solver generates.

finally got around to finishing this project after 5 years lol