Games similar to Ecco the Dolphin:

Tunic is an action adventure about a tiny fox in a big world. Explore the wilderness, discover spooky ruins, and fight terrible creatures from long ago.

Inspired by the adventure and imagination that we love from classic science-fiction, No Man's Sky presents you with a galaxy to explore, filled with unique planets and lifeforms, and constant danger and action. In No Man's Sky, every star is the light of a distant sun, each orbited by planets filled with life, and you can go to any of them you choose. Fly smoothly from deep space to planetary surfaces, with no loading screens, and no limits. In this infinite procedurally generated universe, you'll discover places and creatures that no other players have seen before - and perhaps never will again.

SOMA is a sci-fi horror game from Frictional Games, the creators of Amnesia: The Dark Descent. It is an unsettling story about identity, consciousness, and what it means to be human. Enter the world of SOMA and face horrors buried deep beneath the ocean waves. Delve through locked terminals and secret documents to uncover the truth behind the chaos. Seek out the last remaining inhabitants and take part in the events that will ultimately shape the fate of the station. But be careful, danger lurks in every corner: corrupted humans, twisted creatures, insane robots, and even an inscrutable omnipresent A.I. You will need to figure out how to deal with each one of them. Just remember there’s no fighting back, either you outsmart your enemies or you get ready to run.

Abzu is an exploration game where you are a lone diver in a lush ocean world. The diver descends deeper and deeper into the depths, where she will encounter majestic creatures, discover ancient secrets, and search for her true purpose. Abzu roughly translates to "The Ocean of Wisdom" from ancient Sumerian.

Children of Morta is a narrative driven hack and slash roguelike. Take on the role of a member of the Bergson family, the Guardians of Mount Morta, as you fight desperately against the Corruption. Experience not only what it means to be a hero, but to be part of a family that bears the weight of the mountain together.

In The Vanishing of Ethan Carter, you play as Paul Prospero, an occult detective who receives a disturbing letter from Ethan Carter and realizes that the boy is in grave danger. When Paul arrives in Ethan's home of Red Creek Valley, he realizes things are even worse than he imagined. Ethan has vanished in the wake of a brutal murder, which Paul comes to see might not be the only murder to investigate. Using both regular and supernatural detective skills, Paul must figure out what happened to the missing boy.

Momodora: Reverie Under the Moonlight is a sidescrolling platformer, and is the fourth installment of the Momodora series. Focusing on gameplay, melee combos, dodge mechanics, travel forwards in the search to save everyone. With your trusty leave, find a variety of items and spells to use to assist you on your journey. This game is a prequel to the previous Momodora games.

A massive ocean world, teeming with life and filled with ancient secrets. Join Naija, a lone underwater dweller in search of her family, as she explores the depths of Aquaria. She'll travel from hidden caves, shrouded in darkness, to beautiful, sunlit oases, all lovingly handcrafted by its two creators. Naija's story, narrated fully with voice overs, will become yours, as you join her on this magnificent adventure.

Ecco must stop the Vortex! He is “the stone that splits the stream of time.” He now faces his most dangerous quest yet. For it is not just his dolphin pod at stake, but the Earth and all living beings!

Somewhere there is a place called the Endless Sea. There lives a giant whale named Big Blue. To find Big Blue, you have to open the Crystal Doors called Glyphs. To open the Crystal Doors, you must satisfy their wish. Guide Ecco and his friends to swim through the ocean and find Big Blue.