Please note that transferring a game account to Steam is not possible.
You can play with a Steam-created account on other platforms, but not the other way around.

If you would like to play on a PC or laptop using an account originally created on a mobile device, you can do so via the MY.GAMES Launcher.

You can download the app here: https://my.games/launcher 

Your game account will be loaded automatically as long as it is linked to Server Authorization (MY.GAMES account) and you use the same credentials to log in to the MY.GAMES Launcher.