Games like Left Alone
Games like Left Alone include What Remains of Edith Finch, SOMA, Firewatch, The Exit 8, and Outer Wilds. We matched them by the tags players give Left Alone on Steam (Exploration, Puzzle, Walking Simulator, First-Person, and 3D): closest matches first, and among equally close ones the better-known games.

What Remains of Edith Finch
Shared: Walking Simulator · Exploration · Story Rich

SOMA
Shared: Horror · Exploration · Psychological Horror

Firewatch
Shared: Walking Simulator · Exploration · First-Person

The Exit 8
Shared: Exploration · Puzzle · Walking Simulator

Outer Wilds
Shared: Exploration · Puzzle · Story Rich

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

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

Poppy Playtime
Shared: Puzzle · Horror · First-Person

Inside the Backrooms
Shared: Puzzle · Horror · Exploration

INFRA
Shared: Exploration · Puzzle · First-Person

MiSide
Shared: Psychological Horror · First-Person · Story Rich

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

The Painscreek Killings
Shared: Exploration · Puzzle · Walking Simulator

Blue Prince
Shared: Puzzle · Exploration · First-Person

Resident Evil 7 Biohazard
Shared: First-Person · Horror · Psychological Horror

Outlast
Shared: First-Person · Horror · Psychological Horror

Scanner Sombre
Shared: Exploration · Walking Simulator · Horror

Riven
Shared: Puzzle · Exploration · First-Person

Lethal Company
Shared: First-Person · Horror · Exploration

Amnesia: The Dark Descent
Shared: Horror · Puzzle · First-Person

Escape the Backrooms
Shared: Horror · Exploration · First-Person

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

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

Mouthwashing
Shared: Horror · Psychological Horror · Story Rich