Nancy Drew: Treasure of the Seven Ships – The 20th part in a series of adventures. The main character finds herself on the verge of a new and more mysterious case, which she immediately wants to investigate. It all started when she decided to spend a few days on vacation, going to the Bahamas. Together with the company, she had fun and enjoyed the warm sun and sea, until she discovered that the girl who organized the trip had been kidnapped.

Nancy encounters a message from a kidnapper who wants her to find an ancient treasure to bring back her friend Bess. Now the heroine will need to find an ancient treasure and deal with the kidnapping of unfortunate Bess. Gameplay of Nancy Drew: Ransom of the Seven Ships begins on a sheltered cove, where the gamer faces the first puzzles and asks locals about an ancient secret.

After the investigation begins, the protagonist goes to Shark Bay, where she discovers more clues and information about the legend. Communicating with local inhabitants and exploring abandoned ancient places, she gradually develops her own path on how to get to the lost treasure. In the future, she will need to get to Bat Rock, a high archipelago formation with a variety of dangerous caves. The last location will be the Blue Abyss, presented in the form of a vast hole in the center of the island.