Games like 心之檻
Games like 心之檻 include My Vow to My Liege, Mirror 2: Project X, Florence, Sweet Home, and Volcano Princess. We matched them by the tags players give 心之檻 on Steam (RPG, Indie, Casual, Otome, and Female Protagonist): closest matches first, and among equally close ones the better-known games.

My Vow to My Liege
Shared: RPG · Female Protagonist · Otome

Mirror 2: Project X
Shared: Female Protagonist · Visual Novel · RPG

Florence
Shared: Indie · Casual · Female Protagonist

Sweet Home
Shared: RPG · Female Protagonist · Visual Novel

Volcano Princess
Shared: RPG · Female Protagonist · Visual Novel

Melvor Idle
Shared: RPG · Casual · Indie

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

Far Away
Shared: Singleplayer · Visual Novel · Female Protagonist

Assemble with Care
Shared: Indie · Casual · Female Protagonist

月华辉映之刻
Shared: RPG · Female Protagonist · Otome

Pretty Neko
Shared: Indie · Casual · RPG

灾厄黑龙与谎言公主
Shared: RPG · Otome · Visual Novel

Fox Hime
Shared: Casual · Indie · RPG

千面 Melancholy Love
Shared: Indie · Casual · RPG

The Scroll of Taiwu : Beyond The Dome
Shared: RPG · Indie · Singleplayer

月夜下的紅茶杯 ~ Blacktea With Moon
Shared: RPG · Indie · Female Protagonist

Long Live The Queen
Shared: Indie · Visual Novel · Female Protagonist

Hatoful Boyfriend
Shared: Visual Novel · Female Protagonist · Otome

Fox Hime Zero
Shared: Indie · Visual Novel · Casual

Helen's Mysterious Castle
Shared: RPG · Indie · Casual

Chinese Parents
Shared: RPG · Casual · Indie

Transistor
Shared: Indie · Female Protagonist · RPG

My Time at Portia
Shared: RPG · Casual · Singleplayer