There is also this fun website: https://labs.sense-studios.com/threebody/index.html https://labs.sense-studios.com/threebody/index.html Simulating a four-body

There is also this fun website: https://labs.sense-studios.com/threebody/index.html https://labs.sense-studios.com/threebody/index.html Simulating a four-body problem from the point of view of a telluric planet being juggled around by three stars. It's supposed to emulate the evolution of trisolarans from the "Three Body Problem" novel by Liu Cixin.