If you have a gander at the online manual for the North American release of Phantasy Star Online 2, you will notice that the PC version is listed as coming to Steam along with Microsoft Store version.
Launch PC game version
When the download is complete, you can proceed to launch the game by doing the following:
- Open the Steam client and search for “Phantasy Star Online 2” under the “Library” section, then click “Play.”
- If you opted to create a desktop shortcut, simply double click on the shortcut to launch the game.
- Windows 10
- Open the start menu and search for the “Phantasy Star Online 2” app shortcut.
- If you opted to create a desktop shortcut, simply double click on the desktop shortcut.
As you already know, this weekend will be the start of the Phantasy Star Online 2 closed beta, from February 7 to the 9th only on Xbox One.