Games like Hydrangea
Games like Hydrangea include Doki Doki Literature Club Plus!, The NOexistenceN of you AND me, NEEDY STREAMER OVERLOAD, Slay the Princess — The Pristine Cut, and Our Life: Beginnings & Always. We matched them by the tags players give Hydrangea on Steam (Casual, Visual Novel, Interactive Fiction, Choose Your Own Adventure, and 2D): closest matches first, and among equally close ones the better-known games.

Doki Doki Literature Club Plus!
Shared: Visual Novel · Anime · Cute

The NOexistenceN of you AND me
Shared: Visual Novel · Anime · Interactive Fiction

NEEDY STREAMER OVERLOAD
Shared: Visual Novel · Anime · Cute

Slay the Princess — The Pristine Cut
Shared: Visual Novel · Choose Your Own Adventure · Interactive Fiction

Our Life: Beginnings & Always
Shared: Visual Novel · Choose Your Own Adventure · LGBTQ+

Far Away
Shared: Visual Novel · Choose Your Own Adventure · Anime

Until Then
Shared: Visual Novel · Interactive Fiction · 2D

Refind Self: The Personality Test Game
Shared: Interactive Fiction · Visual Novel · 2D

Florence
Shared: Casual · Interactive Fiction · Cute

I Wani Hug that Gator!
Shared: Visual Novel · Choose Your Own Adventure · Interactive Fiction

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

Hooked on You: A Dead by Daylight Dating Sim™
Shared: Visual Novel · Choose Your Own Adventure · 2D

Mirror 2: Project X
Shared: Visual Novel · Interactive Fiction · Anime

Fox Hime Zero
Shared: Visual Novel · Casual · Anime

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

LoveChoice
Shared: Visual Novel · Casual · Romance

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

Senren * Banka
Shared: Visual Novel · Casual · Anime

Noctuary
Shared: Interactive Fiction · Visual Novel · Cute

恋爱绮谭~不存在的夏天~
Shared: Visual Novel · Casual · Anime

Milk inside a bag of milk inside a bag of milk
Shared: Visual Novel · Interactive Fiction · Psychological

Class of '09: The Re-Up
Shared: Visual Novel · Casual · Choose Your Own Adventure

BAD END THEATER
Shared: Visual Novel · Choose Your Own Adventure · LGBTQ+

and Roger
Shared: Visual Novel · Interactive Fiction · 2D