Yes. But not a universal or easy way. You can't "tell" in the sense that you would just run MagicKeyloggerFinder on your computer and it will show you all the k

Yes. But not a universal or easy way. You can't "tell" in the sense that you would just run MagicKeyloggerFinder on your computer and it will show you all the keyloggers, that's not how it works. In essence, it's the absence of evidence problem. In a way, unless you can prove the machine code running on your CPU is not doing key logging (which is separate from recoding those logs or transmitting those logs), and you can also prove that the code is not changing, you have no evidence that there is no keylogger. As for games and keyboards in general: games need to read your keyboard to function, so they will always be able to read what you're typing. In some operating system, that includes times where you might be running the game in the background.