Games like Reflections
Games like Reflections include Firewatch, What Remains of Edith Finch, The Beginner's Guide, Gone Home, and Journey. We matched them by the tags players give Reflections on Steam (Indie, Adventure, Early Access, First-Person, and Experimental): closest matches first, and among equally close ones the better-known games.

Firewatch
Shared: Adventure · First-Person · Atmospheric

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

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

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

Journey
Shared: Adventure · Indie · Atmospheric

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

Outer Wilds
Shared: Adventure · Exploration · Story Rich

Valley
Shared: Adventure · First-Person · Indie

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

Obduction
Shared: Adventure · Indie · First-Person

INFRA
Shared: Exploration · First-Person · Adventure

The Long Dark
Shared: Exploration · Adventure · First-Person

The Forgotten City
Shared: Adventure · Indie · Exploration

NaissanceE
Shared: Indie · Exploration · Adventure

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

The Witness
Shared: First-Person · Exploration · Indie

PEAK
Shared: Adventure · First-Person · Exploration

Cradle
Shared: Indie · Adventure · First-Person

Everybody's Gone to the Rapture
Shared: Indie · Adventure · Walking Simulator

CARIMARA: Beneath the forlorn limbs
Shared: Adventure · Exploration · Indie

Dream
Shared: Indie · Adventure · Exploration

Call of the Sea
Shared: Adventure · First-Person · Indie

Fallout 4
Shared: Adventure · Exploration · First-Person

Tacoma
Shared: Adventure · Indie · Walking Simulator