I've written about several RC flight simulators over the years. There is no doubt that they are excellent tools for developing and polishing your piloting skills. Many sims let you fly multi-rotor models. Some also have First Person View (FPV) features. But very few programs are actually designed to emulate the specific demands of flying a high-speed FPV quad through a challenging race course. Liftoff is one of those simulators.
Liftoff is a Steam game. I assume that most of us here are familiar with the Steam platform. The minimum system requirements are pretty reasonable. In fact, I have been running Liftoff on a mid-range laptop that doesn't quite hit all of the minimums. The game has been running just fine in single player mode. With that being said, there are still quite a few features that I have not yet utilized. It is possible that some of those features could require more horsepower to run well.
Don't expect life-like graphics here. You won't find them. However, I think that the image quality is good enough for the sim's intended purpose. What's important to me is that the game runs smoothly and without lag on my machine. It does this even at the highest video quality settings.
Knowing that it isn't really practical to review all aspects of this simulator, I decided to focus on its core functionality: training to become a better racing quad pilot. For some, that might mean starting at square one. As you will see, I came in with a fair bit of varied experience flying all types of multi-rotors…and perhaps an over-inflated confidence in my abilities.
In addition to the single-player flight simulation, you can race against other people online, create your own race course, design a cyber multi-rotor, and other neat things. But those capabilities are garnish to the fundamental purpose of the sim. People who are really into gaming may have an interest in such features. I'm okay ignoring them.