To  access your purchased game, you need to:

• To begin, install the Uplay Client for PC. If you are having difficulty installing the client, please reference our client installation guide.
• Once the installation has completed, log in using the same Ubisoft Account email and password associated with your purchase. If you are having difficulty logging in, please reference our article about login troubleshooting.
• Find your game in the Uplay GAMES list. 
• Select Download
• Once the download is complete, select Play to start your game

For DLC/ULC (additional content) purchases, the content will normally be available in-game automatically. Launch the main game to access your content. 
DLC purchased on the Ubisoft Store will work with all versions of the base game, with the exception of those purchased on Steam or on the Epic Games Store.

Pre-ordered purchases may only be visible when a preload option is available.