Steam can be installed from Ubuntu’s multiverse repo, or by manually sourcing the deb package and performing a local install. On older systems, you may need to manually enable multiverse first for the first method. It’s just one extra step though, nothing to worry about. Install from Ubuntu Store You can install Steam using the Ubuntu Software app if you want a GUI-based method. Search and open ‘Ubuntu Software’ from the Activities overview. Locate the Steam Installer and click on Install. Enter your password for authentication. After installing Steam, you can launch it from the Applications window. Install Using Apt The fastest way to install Steam is with apt. But this won’t work if the multiverse repo isn’t already enabled. Step 1: Enable the Multiverse Repository First, ensure the multiverse repo is already enabled. If it isn’t, the following command will automatically add it. sudo add-apt-repository multiverse Step 2: Update Your Package List After enabling the new repo, update your package index so you can install the latest Steam version. sudo apt update Step 3: Install Steam Use apt to install Steam from the Ubuntu multiverse repo. sudo apt install -y steam Step 4: Launch Steam After installing Steam, you can launch it from the Applications menu as done earlier. Or, you can launch it from the terminal by entering steam Local Deb Install As the multiverse repo contains software that isn’t free or open-source, some users don’t like enabling it. In that case, you can download the deb package and install Steam manually. Go to the Steam store and download the Steam deb package. Then, enter the downloaded file’s path and install Steam. sudo apt install ~/Downloads/steam_package Once again, you can launch it from the terminal by entering steam How to Update or Remove Steam Steam auto-updates at launch, so you don’t need to worry about the package being old or manually upgrading it. And if you need to uninstall Steam, you can remove it and the orphaned dependencies with sudo apt remove steam sudo apt autoremove The Steam package is gone, but the user files such as your downloaded games will still be on the drive. You can delete those by removing the user Steam directory with rm -r ~/.local/share/Steam