Games like Raining City: Millions Recollections
Games like Raining City: Millions Recollections include No Case Should Remain Unsolved, Danganronpa V3: Killing Harmony, Firework, Sanfu, and Mirror 2: Project X. We matched them by the tags players give Raining City: Millions Recollections on Steam (Female Protagonist, Mystery, Interactive Fiction, Visual Novel, and Puzzle): closest matches first, and among equally close ones the better-known games.

No Case Should Remain Unsolved
Shared: Interactive Fiction · Puzzle · Visual Novel

Danganronpa V3: Killing Harmony
Shared: Female Protagonist · Visual Novel · Mystery

Firework
Shared: Mystery · Puzzle · 2D

Sanfu
Shared: Mystery · Puzzle · Visual Novel

Mirror 2: Project X
Shared: Female Protagonist · Visual Novel · Interactive Fiction

Tales of the Black Forest
Shared: Female Protagonist · Adventure · Visual Novel

Phoenix Wright: Ace Attorney Trilogy
Shared: Mystery · Visual Novel · Puzzle

OPUS: Echo of Starsong - Full Bloom Edition
Shared: Female Protagonist · Visual Novel · Interactive Fiction

Road to Empress I
Shared: Female Protagonist · Visual Novel · Immersive Sim

Danganronpa: Trigger Happy Havoc
Shared: Visual Novel · Mystery · Anime

月华辉映之刻
Shared: Female Protagonist · Visual Novel · Interactive Fiction

Paper Bride 2 Zangling Village
Shared: Mystery · Puzzle · Interactive Fiction

Lay a Beauty to Rest: The Darkness Peach Blossom Spring
Shared: Mystery · Visual Novel · Interactive Fiction

Danganronpa 2: Goodbye Despair
Shared: Mystery · Visual Novel · Anime

Refind Self: The Personality Test Game
Shared: Female Protagonist · Interactive Fiction · Visual Novel

Magical Girl Witch Trials
Shared: Female Protagonist · Visual Novel · Mystery

Unheard - Voices of Crime
Shared: Mystery · Puzzle · Thriller

彷徨之街 The Street of Adrift
Shared: Female Protagonist · Visual Novel · Interactive Fiction

The Hungry Lamb: Traveling in the Late Ming Dynasty
Shared: Visual Novel · Interactive Fiction · Adventure

Sally Face - Episode One
Shared: Mystery · Puzzle · Adventure

The Weeping Swan: Ten Days of the City's Fall
Shared: Interactive Fiction · Visual Novel · Anime

WILL: A Wonderful World / WILL:美好世界
Shared: Puzzle · Female Protagonist · Adventure

OXENFREE II: Lost Signals
Shared: Mystery · Female Protagonist · Adventure

Trials of Innocence
Shared: Interactive Fiction · Visual Novel · Mystery