Games like Last Dive: Echo Trench
Games like Last Dive: Echo Trench include SOMA, Layers of Fear (2016), Little Nightmares, Little Nightmares II, and Still Wakes the Deep. We matched them by the tags players give Last Dive: Echo Trench on Steam (Horror, Adventure, Psychological Horror, Underwater, and Atmospheric): closest matches first, and among equally close ones the better-known games.

SOMA
Shared: Horror · Psychological Horror · Atmospheric

Layers of Fear (2016)
Shared: Horror · Psychological Horror · Atmospheric

Little Nightmares
Shared: Horror · Adventure · Atmospheric

Little Nightmares II
Shared: Horror · Adventure · Psychological Horror

Still Wakes the Deep
Shared: Horror · Psychological Horror · Walking Simulator

Firewatch
Shared: Adventure · Atmospheric · Walking Simulator

Outlast
Shared: Horror · Psychological Horror · Atmospheric

What Remains of Edith Finch
Shared: Atmospheric · Adventure · Walking Simulator

Iron Lung
Shared: Horror · Psychological Horror · Atmospheric

Scanner Sombre
Shared: Horror · Adventure · Exploration

Subnautica 2
Shared: Horror · Underwater · Exploration

Visage
Shared: Horror · Psychological Horror · Adventure

Mouthwashing
Shared: Horror · Psychological Horror · Atmospheric

Bad Parenting 1: Mr. Red Face
Shared: Horror · Adventure · Psychological Horror

Amnesia: A Machine For Pigs
Shared: Horror · Atmospheric · Psychological Horror

Subnautica
Shared: Horror · Underwater · Exploration

ROUTINE
Shared: Psychological Horror · Atmospheric · Adventure

Darkwood
Shared: Horror · Adventure · Psychological Horror

Sally Face - Episode One
Shared: Psychological Horror · Horror · Adventure

Poppy Playtime
Shared: Horror · Psychological Horror · Singleplayer

Blair Witch
Shared: Horror · Adventure · Psychological Horror

From The Darkness
Shared: Horror · Psychological Horror · Dark

Layers of Fear 2 (2019)
Shared: Horror · Psychological Horror · Atmospheric

Fingerbones
Shared: Horror · Psychological Horror · Adventure