Games like DIVE or DIE - Children of Rain

Side-view perspective and intense underwater survival horror feel very similar to your target.

Side-scrolling action and Lovecraftian dread create a comparable nightmarish atmosphere.

Managing a survivor's camp while scavenging for supplies captures that same desperate loop.

Commanding an Ark through drowned ruins offers a similar post-apocalyptic maritime vibe.

Exploring undersea caves and managing oxygen provides that same claustrophobic tension.

Crewing a vessel through deep trenches matches the underwater exploration and danger.

Diving into the ocean to extract secrets brings a similar sense of peril.

Fishing in mysterious waters with lurking cosmic threats hits the same mood.

Scavenging for resources while evading unseen horrors maintains a constant sense of dread.

Exploring subterranean labyrinths with a shadowy presence mirrors the feeling of being hunted.

Navigating a post-societal world via a raft captures the scavenging and survival loop.

Exploring an isolated underwater facility provides that same heavy, unsettling atmosphere.