MS Flight Sim and X-Plane
4000+ hours and counting
Instruments, navigation, theory, practical drilling, adventures, missions, sharing multi-player flights, "what-if" scenarios, fun and lots more.
You know, I tell instructors I have over 4000 hours on Simulation over the years (which I take pretty seriously really), and most of the time I get a little 1-ply expression of distant indirect appreciation and condescending approval, like they think I'm more of a gamer than a real student pilot.
But it really comes in handy for knowing what you're doing with instruments, navigation, procedures, and many other facets of aviation---and without the cost.
In a later blog for real-world Under the Hood Training, I detail that there I am blindfolded for 3 solid hours; tracking VORs, VOR Intersections, Unusual Attitudes, multiple ILS approaches, and all with completely BROKEN Attitude Indicator, and damn if I ain't DOING IT!!
So thanks MS FlightSim, and in your face with "Simming is merely a game..." because it REALLY pays off, all those hours where the real-world physical plane and looking out the window is far less important, and the instruments are there for the learning and practicing.
Truth be told, on Sim, I practice Stalls at 300ft AGL too. ;)