Installing games on Linux
There are several, if not a multitude, of ways to get and play games on Linux. Whether it be a system-wide installation or for only one or more users. The options ultimately depends on choices made by the publisher which ways are available to the end-user.
Using Package Managers
Using package managers are by far the most common way of installing any software on modern Linux systems.
Installing from Repositories
Installing downloaded Packages
Digital Distribution Clients
Even if your favorite game is not released for Linux, don't fret. There is still a high chance of you being able to enjoy them in their full glory on your Linux box.
Compiling from Source
This applies only to games where the game's source code is available to you. This requires not only a compiler to be installed, but usually quite a few dependencies. For a novice user, this might be a daunting task.