Ocean Rift is described as 'virtual reality adventure where you explore an open world undersea. Swim with dolphins, turtles, rays, whales and even extinct reptiles as you traverse the vivid depths'. There are five games similar to Ocean Rift for a variety of platforms, including Windows, Steam, Oculus Rift, OSVR and HTC Vive. The best alternative is Subnautica. It's not free, so if you're looking for a free alternative, you could try Scuba Dive Simulator:Zenobia. Other Ocean Rift like games are ABZU (Paid), Ecco the Dolphin (Paid) and World of Diving (Paid).
Subnautica is an open world underwater adventure game where you're thrust into an alien world submersed underwater. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - All while trying to survive.
Discover a lush hidden world as you descend into the heart of the ocean, where ancient secrets lie forgotten and encounters with majestic creatures await. From the art director of Journey®, ABZÛ is a beautiful underwater adventure that evokes the dream of diving.
The ocean seemed endless with rolling breakers to race through! At high speed Ecco could burst through the waves leaping through the air – almost flying! Until one day, all of that changed. A freak whirlpool of air and water tore the life from Ecco’s
World of Diving is the VR-enabled diving game that lets you explore life undersea with others online. FEATURES - Interact with the amazing sea life. - Compete against your fellow divers. - Discover the sunken remains of history.
Experience the world of Larnaka, Cyprus undersea, the location of the famous Zenobia ship wreck. Take a virtual dive through the wreck, exploring the stunning underwater environment in 3D on your mobile device.