This is probably like watching paint dry for most people. But the simulation puts together most of what we know about the course of her sinking via little blurbs in a timeline. I love timelines.
I've been enthralled with Titanic since I was a boy and I just now learned how late Smith, Wilde, and Andrews tried to call barely-filled boats back in to pick up more people.
The simulation gets two elements absolutely right: the moonless, stars-ablaze sky witnessing all and the calm, cold water darkly receiving all. Titanic played that physical and spiritual interface like nothing before or since.
For the impatient, fast-forward to about 2:12 when her demise really picks up speed.