In the far future, hundreds of years from now, humans and dolphins will harmoniously coexist on the same planet and share their resources. The dolphins, who are actually very clever despite their outward appearance, maintain the planet’s ecosystem while humans and other dolphins travel across the cosmos. This peaceful existence is under threat from an extraterrestrial power that is only known as the Foe. The enemy causes harm to Earth’s defensive system and makes negative changes to history as a result. A fantastic dolphin named Ecco must go through time to put things back in order.
The game Ecco is a third-person aquatic adventure, and 25 different aquatic ecosystems await discovery. If Ecco wants to fight the Foe successfully, he must learn how to interact with the other marine species and determine how to affect his environment.