Games like Gion Corridor
Games like Gion Corridor include Firewatch, What Remains of Edith Finch, The Exit 8, Amnesia: A Machine For Pigs, and Layers of Fear (2016). We matched them by the tags players give Gion Corridor on Steam (Adventure, Interactive Fiction, Walking Simulator, Puzzle, and Exploration): closest matches first, and among equally close ones the better-known games.

Firewatch
Shared: Adventure · Walking Simulator · Exploration

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

The Exit 8
Shared: Walking Simulator · Puzzle · Exploration

Amnesia: A Machine For Pigs
Shared: Walking Simulator · Interactive Fiction · Exploration

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

Killer Frequency
Shared: Adventure · Interactive Fiction · Puzzle

INFRA
Shared: Puzzle · Exploration · Adventure

Outer Wilds
Shared: Adventure · Exploration · Puzzle

Platform 8
Shared: Adventure · Walking Simulator · Puzzle

Scanner Sombre
Shared: Walking Simulator · Adventure · Exploration

Poppy Playtime
Shared: Puzzle · Horror · First-Person

The Witness
Shared: Puzzle · Exploration · First-Person

Dear Esther: Landmark Edition
Shared: Walking Simulator · Interactive Fiction · Exploration

Superliminal
Shared: Puzzle · First-Person · Adventure

Quern - Undying Thoughts
Shared: Adventure · Puzzle · Walking Simulator

Obduction
Shared: Adventure · Puzzle · Exploration

ROUTINE
Shared: Adventure · Puzzle · Cinematic

Inside the Backrooms
Shared: Puzzle · Adventure · Horror

SOMA
Shared: Horror · Exploration · First-Person

Amnesia: Rebirth
Shared: Puzzle · Adventure · First-Person

Gone Home
Shared: Walking Simulator · Exploration · Adventure

The Vanishing of Ethan Carter
Shared: Walking Simulator · Adventure · Exploration

Breakout 13
Shared: Interactive Fiction · Exploration · Immersive Sim

Amanda the Adventurer
Shared: Puzzle · First-Person · Adventure