Buy Tetris Effect

You need to use your your game CD Key on the Playstation Network to download your game. To access the Playstation Network, you need a Playstation 4, a broadband connexion, a PSN account, and a storage device according to your console: Hard disk drive, memory card, or USB drive.
Playstation Plus Subscriptions are compatible with PS4, PS3 and PS VITA.

This is the Epic Games launcher. You must download the client HERE, install it, and then create your account. When you sign in to your account, click on your avatar and then on "Redeem Code". Enter your Cd Key your game, your game will automatically be added to your library, and the download will start.