To access additional languages:
• Choose Properties on the left-hand side of the game's overview.
• Launch your game.
If the required language files are not available locally, you will be prompted to install them.
Language drop down in Uplay
When you begin reinstallation, a pop-up will display additional installation languages; from here, select the languages you would like to access in game, before you continue with the process.
Please note, the languages available vary depending on the version you purchased.
If you have any other questions, please get in touch!