Games like The Guest: Home Alone
Games like The Guest: Home Alone include Mirror 2: Project X, Florence, To the Moon, Firewatch, and Moncage. We matched them by the tags players give The Guest: Home Alone on Steam (Casual, Interactive Fiction, Incremental, 3D, and Atmospheric): closest matches first, and among equally close ones the better-known games.

Mirror 2: Project X
Shared: 3D · Interactive Fiction · Casual

Florence
Shared: Casual · Story Rich · Interactive Fiction

To the Moon
Shared: Story Rich · Interactive Fiction · Indie

Firewatch
Shared: Atmospheric · Story Rich · Adventure

Moncage
Shared: Casual · Atmospheric · Singleplayer

Boxes: Lost Fragments
Shared: Casual · 3D · Atmospheric

Impostor Factory
Shared: Story Rich · Adventure · Atmospheric

Berry Bury Berry
Shared: Incremental · 3D · Casual

Gorogoa
Shared: Casual · Atmospheric · Singleplayer

Brothers - A Tale of Two Sons
Shared: Atmospheric · Story Rich · Adventure

A Bird Story
Shared: Story Rich · Interactive Fiction · Indie

The Witcher 3: Wild Hunt — Remastered
Shared: Atmospheric · Story Rich · Singleplayer

Spirit of the North
Shared: Casual · Atmospheric · Adventure

MiSide
Shared: Story Rich · 3D · Atmospheric

OneShot
Shared: Story Rich · Atmospheric · Indie

Coffee Talk
Shared: Interactive Fiction · Atmospheric · Casual

GRIS
Shared: Atmospheric · Indie · Adventure

A Story About My Uncle
Shared: Atmospheric · Adventure · Singleplayer

CARIMARA: Beneath the forlorn limbs
Shared: Story Rich · 3D · Atmospheric

There Is No Game: Wrong Dimension
Shared: Casual · Indie · Adventure

Finding Paradise
Shared: Story Rich · Interactive Fiction · Adventure

Journey
Shared: Atmospheric · Adventure · Casual

Old Man's Journey
Shared: Casual · Story Rich · Adventure

Little Nightmares
Shared: Atmospheric · Singleplayer · Adventure