Steam is a digital distribution platform for video games. As Amazon Kindle is a digital distribution platform for e-Books and iTunes for music, so is Steam for games. It provides you with options to buy and install games, play multiplayer titles, and stay in touch with other gamers via social networking on its platform.
I’m using Ubuntu 20.04 while writing this tutorial, but the instructions should be applicable to other Ubuntu versions and other Ubuntu-based distributions as well.
1. Confirm that the multiverse Ubuntu repository is enabled
$ sudo add-apt-repository multiverse
$ sudo apt update
2. Install Steam package
$ sudo apt install steam
If you are a one liner, you can run the following command in one line
$ sudo add-apt-repository multiverse && sudo apt update && sudo apt install steam
Finally, use your desktop menu to start Steam