Games like Sweet House
Games like Sweet House include Crush Crush, 魔女的夜宴, NEKOPARA Vol. 1, Happiness Double Room, and Love Is All Around. We matched them by the tags players give Sweet House on Steam (Sexual Content, Hentai, Visual Novel, JRPG, and Interactive Fiction): closest matches first, and among equally close ones the better-known games.

Crush Crush
Shared: Sexual Content · Hentai · Nudity

魔女的夜宴
Shared: Sexual Content · Hentai · Visual Novel

NEKOPARA Vol. 1
Shared: Hentai · Sexual Content · Visual Novel

Happiness Double Room
Shared: Sexual Content · Hentai · Visual Novel

Love Is All Around
Shared: Sexual Content · Visual Novel · Dating Sim

Swaying Girl
Shared: Sexual Content · Hentai · Interactive Fiction

NEKOPARA Vol. 3
Shared: Sexual Content · Hentai · Visual Novel

NEKOPARA Vol. 0
Shared: Sexual Content · Visual Novel · Hentai

Tricolour Lovestory
Shared: Sexual Content · Visual Novel · Dating Sim

Summer Memories
Shared: Sexual Content · Hentai · Visual Novel

Yusetsu
Shared: Sexual Content · JRPG · Hentai

NEKOPARA Vol. 4
Shared: Sexual Content · Hentai · Visual Novel

Gaokao.Love.100Days
Shared: Visual Novel · Multiple Endings · Dating Sim

Knowledge, or know Lady
Shared: Sexual Content · Visual Novel · Dating Sim

Doki Doki Literature Club Plus!
Shared: Visual Novel · Sexual Content · Dating Sim

LoveChoice
Shared: Visual Novel · Choices Matter · Dating Sim

Vampires' Melody
Shared: Visual Novel · Interactive Fiction · JRPG

NEKOPARA Vol. 2
Shared: Sexual Content · Visual Novel · Hentai

Snow Daze: The Music of Winter Special Edition
Shared: Sexual Content · Hentai · Visual Novel

恋爱关系/Romance
Shared: Hentai · Visual Novel · Interactive Fiction

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

Riddle Joker
Shared: Sexual Content · Visual Novel · Dating Sim

ATRI -My Dear Moments-
Shared: Visual Novel · Multiple Endings · Dating Sim

LOVE³ -Love Cube-
Shared: Sexual Content · Hentai · Visual Novel