Yes—if it’s the right mechanical keyboard. While any mechanical keyboard can be used for PC gaming, just like any standard keyboard, most gamers prefer a specific kind of switch. Linear switches, with a smooth action from zero pressure to the point where the switch “bottoms out” and can’t be pressed down further, allow for each key to be depressed faster and return to its resting position faster, too. Tactile or Clicky switches, while excellent for typing, are a bit slower and not preferred for gaming. Cherry MX Red switches are the go-to choice for mechanical keyboards designed for gaming. There are tons of varieties, in a ton of colors that might not correspond to the actual properties of the switch itself. Some have a higher actuation point (the point in the key travel at which the keyboard registers a press), or lighter springs for a softer touch, or even less key travel to shorten the distance between pressing the key and bottoming out by a few millimeters. Some fancy “silent” switches are much quieter than normal ones. But the important part for most gamers is that Linear switch type for smooth, fast presses. Unless your tastes are very unconventional, you want Linear switches for gaming, not Tactile or Clicky.