Games like Low_Signal
Games like Low_Signal include Firewatch, What Remains of Edith Finch, Gone Home, Amnesia: A Machine For Pigs, and Road 96. We matched them by the tags players give Low_Signal on Steam (Walking Simulator, Metroidvania, Exploration, First-Person, and Story Rich): closest matches first, and among equally close ones the better-known games.

Firewatch
Shared: Walking Simulator · Story Rich · First-Person

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

Gone Home
Shared: Walking Simulator · Exploration · First-Person

Amnesia: A Machine For Pigs
Shared: Walking Simulator · Story Rich · First-Person

Road 96
Shared: First-Person · Story Rich · 1990's

The Forgotten City
Shared: Exploration · Adventure · Story Rich

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

The Stanley Parable
Shared: Walking Simulator · First-Person · Exploration

Hollow Knight
Shared: Metroidvania · Exploration · Story Rich

Outer Wilds
Shared: Exploration · Story Rich · Adventure

The Beginner's Guide
Shared: Walking Simulator · Story Rich · First-Person

INFRA
Shared: Exploration · Walking Simulator · First-Person

SOMA
Shared: Story Rich · Psychological Horror · Exploration

Hollow Knight: Silksong
Shared: Metroidvania · Exploration · Indie

Still Wakes the Deep
Shared: Walking Simulator · First-Person · Psychological Horror

The Park®
Shared: Walking Simulator · First-Person · Psychological Horror

Blue Prince
Shared: Exploration · Story Rich · First-Person

The Vanishing of Ethan Carter
Shared: Walking Simulator · Exploration · First-Person

Valley
Shared: Exploration · First-Person · Adventure

The Witness
Shared: Exploration · First-Person · Walking Simulator

No, I'm not a Human
Shared: Psychological Horror · Story Rich · First-Person

POOLS
Shared: Walking Simulator · Exploration · Psychological Horror

The Moon Sliver
Shared: Walking Simulator · First-Person · Exploration

Fears to Fathom - Woodbury Getaway
Shared: First-Person · Psychological Horror · Walking Simulator