Games like I deserve a happy ending
Games like I deserve a happy ending include BAD END THEATER, Lucy -The Eternity She Wished For-, LoveChoice, The Cosmic Wheel Sisterhood, and Our Life: Beginnings & Always. We matched them by the tags players give I deserve a happy ending on Steam (LGBTQ+, Romance, Anime, Fantasy, and Interactive Fiction): closest matches first, and among equally close ones the better-known games.

BAD END THEATER
Shared: LGBTQ+ · Visual Novel · Romance

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

LoveChoice
Shared: Romance · Visual Novel · Simulation

The Cosmic Wheel Sisterhood
Shared: LGBTQ+ · Interactive Fiction · Magic

Our Life: Beginnings & Always
Shared: Romance · LGBTQ+ · Visual Novel

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

Tricolour Lovestory
Shared: Anime · Visual Novel · Romance

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

Dream Daddy: A Dad Dating Simulator
Shared: LGBTQ+ · Romance · Simulation

Sakura Spirit
Shared: Anime · Visual Novel · Romance

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

Love Curse: Find Your Soulmate
Shared: LGBTQ+ · Romance · Visual Novel

Sweet Home
Shared: LGBTQ+ · Interactive Fiction · Visual Novel

小白兔电商~Bunny e-Shop
Shared: Anime · Visual Novel · Simulation

Date Everything!
Shared: LGBTQ+ · Romance · Simulation

Love, Money, Rock'n'Roll
Shared: Anime · Romance · Visual Novel

Hooked on You: A Dead by Daylight Dating Sim™
Shared: Romance · Visual Novel · Anime

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

Heart of the Woods
Shared: LGBTQ+ · Interactive Fiction · Anime

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

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

Until Then
Shared: Visual Novel · Interactive Fiction · Romance

I Wani Hug that Gator!
Shared: Romance · Visual Novel · Interactive Fiction

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