You need to create an account and you can run many games on Linux and multiple platforms, see the official website with games.
The installation process is simple to do on Fedora 31 with DNF tool:
[root@desk mythcat]# sudo dnf install lutris
Last metadata expiration check: 0:06:35 ago on Wed 04 Dec 2019 07:15:23 PM EET.
Dependencies resolved.
======================================================================================
Package Arch Version Repository Size
======================================================================================
Installing:
lutris x86_64 0.5.3-1.fc31 fedora 2.0 M
...
Total download size: 129 M
Installed size: 708 M
Is this ok [y/N]: y
...
llvm-libs-9.0.0-1.fc31.i686 ncurses-libs-6.1-12.20190803.fc31.i686
python3-evdev-1.1.2-4.fc31.x86_64 unixODBC-2.3.7-5.fc31.x86_64
vulkan-loader-1.1.114.0-1.fc31.i686
Complete!