Games like Moon Observatory Iris
Games like Moon Observatory Iris include Hatoful Boyfriend, 私のリアルは充実しすぎている フルボイス版, ATRI -My Dear Moments-, Amnesia™: Memories, and CLANNAD. We matched them by the tags players give Moon Observatory Iris on Steam (Otome, Visual Novel, Anime, Story Rich, and Fantasy): closest matches first, and among equally close ones the better-known games.

Hatoful Boyfriend
Shared: Visual Novel · Anime · Otome

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

ATRI -My Dear Moments-
Shared: Visual Novel · Anime · Story Rich

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

CLANNAD
Shared: Visual Novel · Anime · Story Rich

Marco & The Galaxy Dragon
Shared: Visual Novel · Anime · Story Rich

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

OZMAFIA!!
Shared: Otome · Visual Novel · Anime

WITCH ON THE HOLY NIGHT
Shared: Visual Novel · Anime · Story Rich

OPUS: Echo of Starsong - Full Bloom Edition
Shared: Visual Novel · Story Rich · Anime

Danganronpa V3: Killing Harmony
Shared: Visual Novel · Anime · Story Rich

Lucy -The Eternity She Wished For-
Shared: Visual Novel · Anime · Story Rich

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

The Hungry Lamb: Traveling in the Late Ming Dynasty
Shared: Visual Novel · Story Rich · Anime

DELTARUNE
Shared: Story Rich · Emotional · Funny

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

Summer Pockets
Shared: Visual Novel · Anime · Emotional

TAISHO x ALICE episode 1
Shared: Otome · Visual Novel · Anime

DRACU-RIOT!
Shared: Visual Novel · Anime · Story Rich

Blood Code
Shared: Visual Novel · Otome · Romance

Dandelion - Wishes brought to you -
Shared: Otome · Visual Novel · Anime

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

Fate/stay night REMASTERED
Shared: Visual Novel · Anime · Story Rich

Steam Prison
Shared: Visual Novel · Anime · Otome