Check out the franchise page here!: https://store.steampowered.com/sale/neptunia-franchise/

From now until Monday at 10am Pacific the entire Neptunia franchise on Steam is on sale! All games, DLCs, and deluxe pack being up for grabs, with discounts from 20% all the way up to a whopping 80% off being available! Consider this a fantastic opportunity to expand your collection!