I grew up playing flight sims.....A-10 Attack!, and F/A-18 Hornet (creative title) were my favorite. Started flying for real in 1995. Flew some others. Have played IL2 Sturmovik particularly for the early war fighters that I love.
If you like flight sims, check out Digital Combat Simulator. This game is un-freakin-real. Every single actual function and button in the cockpit is live, and you actually have to fly it. P51? Yeah, you can't just hop in, hit the engine button and go. You've got to handle all of the fuel adjustments, magnetos, priming, etc. I've only flown the free "demo" portion of the game so far, but I imagine I'm going to buy into it. The game itself is free, and it costs money to buy each individual plane/campaign beyond the initial Sukhoi SU-25T and Mustang. So, I imagine it can add up to quite a bit of money, but holy cow.....I've never been in a sim this intense. According to the developers they've put approximately 50 man-years of work into it. I can only imagine they got it this detailed by use of actual fighter pilots.
I've only ever flown Cessna 150s, 152s, and Piper Cherokees......but shit, guys, this game is a real simulator unlike anything I've seen on a PC.
For a demo of how stupidly realistic and detailed it is, check out this video on carrier landings with an F/A-18C Hornet and the amount of nuance/precision required: