Go to your bundles (https://itch.io/my-purchases/bundles) and click on the bundle.
Then click download on a game and it'll show in your library.
If you want ALL the games in your library then you'll have to do this for all games.
Go to your bundles (https://itch.io/my-purchases/bundles) and click on the bundle.
Then click download on a game and it'll show in your library.
If you want ALL the games in your library then you'll have to do this for all games.