Games like The Sunny Day 晴天
Games like The Sunny Day 晴天 include Tales of the Black Forest, Firework, The Witch's House MV, OMORI, and Sally Face - Episode One. We matched them by the tags players give The Sunny Day 晴天 on Steam (Adventure, Horror, Indie, Female Protagonist, and Psychological Horror): closest matches first, and among equally close ones the better-known games.

Tales of the Black Forest
Shared: Horror · Adventure · Indie

Firework
Shared: Horror · Indie · Psychological Horror

The Witch's House MV
Shared: Horror · Indie · Adventure

OMORI
Shared: Indie · Psychological Horror · Horror

Sally Face - Episode One
Shared: Indie · Horror · Psychological Horror

ICEY
Shared: Female Protagonist · Adventure · Indie

Little Misfortune
Shared: Indie · Psychological Horror · Adventure

The Coma 2: Vicious Sisters
Shared: Adventure · Horror · Indie

DISTRAINT: Deluxe Edition
Shared: Indie · Horror · Psychological Horror

Angels of Death
Shared: Horror · Psychological Horror · RPG

Mad Father
Shared: Horror · Psychological Horror · Adventure

Poppy Playtime
Shared: Horror · Psychological Horror · Singleplayer

Fran Bow
Shared: Psychological Horror · Horror · Adventure

Cat in the Box
Shared: Adventure · Horror · Indie

MiSide
Shared: Psychological Horror · Horror · Indie

Little Nightmares
Shared: Horror · Adventure · Indie

Ib
Shared: Horror · Indie · Psychological Horror

DreadOut
Shared: Horror · Adventure · Indie

KinitoPET
Shared: Horror · Psychological Horror · Indie

Rusty Lake Paradise
Shared: Adventure · Indie · Horror

Greyfox RPG
Shared: Adventure · Indie · RPG

The Cat Lady
Shared: Horror · Adventure · Indie

The Vagrant
Shared: Female Protagonist · Adventure · RPG

Nyakori's Rabbit Doll
Shared: Indie · Horror · Adventure