Games like Yunashi no Yume
Games like Yunashi no Yume include What Remains of Edith Finch, Outer Wilds, DREDGE, SIGNALIS, and SOMA. We matched them by the tags players give Yunashi no Yume on Steam (Atmospheric, Mystery, Psychological Horror, Exploration, and Female Protagonist): closest matches first, and among equally close ones the better-known games.

What Remains of Edith Finch
Shared: Atmospheric · Mystery · Exploration

Outer Wilds
Shared: Mystery · Exploration · Atmospheric

DREDGE
Shared: Exploration · Mystery · Atmospheric

SIGNALIS
Shared: Psychological Horror · Atmospheric · Female Protagonist

SOMA
Shared: Atmospheric · Psychological Horror · Exploration

Firewatch
Shared: Atmospheric · Mystery · Exploration

Tales of the Black Forest
Shared: RPG · Female Protagonist · Atmospheric

Fallout 4
Shared: Exploration · Atmospheric · RPG

NieR:Automata™
Shared: RPG · Female Protagonist · Anime

OMORI
Shared: Psychological Horror · RPG · Story Rich

Oxenfree
Shared: Atmospheric · Mystery · Female Protagonist

Stray
Shared: Atmospheric · Exploration · Adventure

Danganronpa V3: Killing Harmony
Shared: Female Protagonist · Mystery · Anime

WILL: A Wonderful World / WILL:美好世界
Shared: RPG · Exploration · Female Protagonist

MiSide
Shared: Psychological Horror · Atmospheric · Anime

Mouthwashing
Shared: Psychological Horror · Atmospheric · Story Rich

Raging Loop
Shared: Mystery · Psychological Horror · Atmospheric

Amnesia: A Machine For Pigs
Shared: Atmospheric · Psychological Horror · Mystery

Sally Face - Episode One
Shared: Psychological Horror · Mystery · Atmospheric

Danganronpa 2: Goodbye Despair
Shared: Mystery · Anime · Psychological Horror

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

Night in the Woods
Shared: Atmospheric · Exploration · Psychological Horror

Disco Elysium - The Final Cut
Shared: Atmospheric · RPG · Story Rich

OneShot
Shared: Atmospheric · Story Rich · Indie