Games like Echo
Games like Echo include The Exit 8, Platform 8, Scanner Sombre, Prey, and The Cabin Factory. We matched them by the tags players give Echo on Steam (Immersive Sim, Walking Simulator, Exploration, 3D, and Simulation): closest matches first, and among equally close ones the better-known games.

The Exit 8
Shared: Exploration · Walking Simulator · Immersive Sim

Platform 8
Shared: Walking Simulator · Psychological Horror · Simulation

Scanner Sombre
Shared: Walking Simulator · Exploration · Horror

Prey
Shared: Immersive Sim · Horror · Exploration

The Cabin Factory
Shared: Walking Simulator · Immersive Sim · Psychological Horror

Outer Wilds
Shared: Exploration · Space · Puzzle

Escape the Backrooms
Shared: Horror · Psychological Horror · Exploration

MiSide
Shared: Psychological Horror · First-Person · 3D

Layers of Fear (2016)
Shared: Walking Simulator · Psychological Horror · Horror

What Remains of Edith Finch
Shared: Walking Simulator · Exploration · First-Person

September 7th
Shared: Walking Simulator · Exploration · Horror

Lethal Company
Shared: First-Person · Exploration · Horror

SOMA
Shared: Psychological Horror · Horror · Exploration

Elite Dangerous
Shared: Exploration · Simulation · Space Sim

Garten of Banban
Shared: First-Person · Horror · Psychological Horror

ROUTINE
Shared: Psychological Horror · Walking Simulator · Singleplayer

Firewatch
Shared: Walking Simulator · Exploration · First-Person

INFRA
Shared: Exploration · Walking Simulator · First-Person

Internet Cafe Simulator 2
Shared: Exploration · Simulation · 3D

Twisted Gallery
Shared: Walking Simulator · Psychological Horror · Simulation

Inside the Backrooms
Shared: Horror · Psychological Horror · Exploration

Amnesia: A Machine For Pigs
Shared: Walking Simulator · Horror · Exploration

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

Five Nights at Freddy's: Security Breach
Shared: Horror · First-Person · Exploration