The games mentioned above are just the tip of the iceberg when it comes to Linux gaming. The Raspbian repositories include a ton of packages, and there are a few commands you should know in order to search through it.
apt-cache search keyword command will search the repos for the keyword you specify, and display a list of results in the command terminal. For example:
apt-cache search game will display pages of results. You can then whittle down the results by specifying multiple keywords. Let's say we want to find a Pac-Man clone:
apt-cache search pacman will return a list of games that include Pac-Man in the description. The
apt-cache search pacman console command will further refine the search and will return one result that matches your query,