I need an education on what a steam key is.
I have no idea what is being discussed.
After you are finished laughing, please pass along what a steam key is.
Steam is a video game distribution platform. You can download it and purchase games through their application. What they give you is a steam key -- a key to a game. You can use that key to download the game and play it on any computer as long as you are logged in to your account. So, in essence, it allows you to maintain a collection of games without hoarding physical copies or saving them all to your own personal hard drives.
Also of note, once you use a key on one account it becomes permanently tied to that account. You now own the key and can no longer give it to anyone else.