Dear Slim Slag
Maybe you should read the original post again. There was no mention of single engine, only the question of PPL.
Many years ago I had the fortunate opportunity to have a go in a 747-400 sim, this was when I was a PPL with around 2,000 hrs SE&ME. Although the "flight" had some of the characteristics of a drunken whale, I managed several circuits and landings on various runways at JFK, a visual into Kai Tak and a landing in Sonderstrom Fjord. I neither crashed or bent the aircraft, and, a friend had the same experience. This was achieved with a highly competent 747 captain who only gave preflight advice and gave no assistance during the flight except for nav guidance. The understanding was that the sim would be frozen if the flight looked in jeopardy as to crash a sim of that caliber can be dangerous and expensive.