For thous first step, thy must download thine game. Meaning one will need the proper amount of space for it, we will not teach you how to do such in this guide because I forgot that part.

Now thou hath waited the proper amount of time for thine game to download, thee must hit the large green button stating "Play"
Now, thou must wait mere seconds for thine game to open most properly.

Hopefully, I hath properly enlightened thee, on how to open this interactive video gaming software known as "Terraria"