Games like Dark Nights
Games like Dark Nights include Amnesia™: Memories, 私のリアルは充実しすぎている フルボイス版, Hatoful Boyfriend, 月华辉映之刻, and LoveChoice. We matched them by the tags players give Dark Nights on Steam (Otome, Visual Novel, Romance, Adventure, and Mystery): closest matches first, and among equally close ones the better-known games.

Amnesia™: Memories
Shared: Otome · Visual Novel · Romance

私のリアルは充実しすぎている フルボイス版
Shared: Otome · Visual Novel · Romance

Hatoful Boyfriend
Shared: Visual Novel · Otome · Female Protagonist

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

LoveChoice
Shared: Romance · Visual Novel · Dating Sim

STEINS;GATE
Shared: Visual Novel · Anime · Story Rich

Senren * Banka
Shared: Visual Novel · Dating Sim · Romance

Homicipher
Shared: Otome · Visual Novel · Female Protagonist

My Vow to My Liege
Shared: Otome · Romance · Visual Novel

ATRI -My Dear Moments-
Shared: Visual Novel · Romance · Anime

7'scarlet
Shared: Otome · Visual Novel · Adventure

Folie Fatale
Shared: Otome · Visual Novel · Female Protagonist

Hakuoki: Edo Blossoms
Shared: Otome · Visual Novel · Adventure

Psychedelica of the Black Butterfly
Shared: Otome · Visual Novel · Adventure

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

Hakuoki: Kyoto Winds
Shared: Otome · Visual Novel · Romance

Love Is All Around
Shared: Visual Novel · Romance · Dating Sim

CLANNAD
Shared: Visual Novel · Romance · Anime

The Hungry Lamb: Traveling in the Late Ming Dynasty
Shared: Visual Novel · Adventure · Multiple Endings

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

BUSTAFELLOWS
Shared: Otome · Visual Novel · Romance

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

Our Life: Beginnings & Always
Shared: Visual Novel · Romance · Dating Sim

Oxenfree
Shared: Female Protagonist · Choices Matter · Mystery