Games like 恋爱关系/Romance - 夏季花火
Games like 恋爱关系/Romance - 夏季花火 include Tricolour Lovestory, 魔女的夜宴, 恋爱关系/Romance, West Sweety, and Dream Date. We matched them by the tags players give 恋爱关系/Romance - 夏季花火 on Steam (Adventure, Casual, Simulation, Sexual Content, and Nudity): closest matches first, and among equally close ones the better-known games.

Tricolour Lovestory
Shared: Sexual Content · Visual Novel · Nudity

魔女的夜宴
Shared: Sexual Content · Hentai · Nudity

恋爱关系/Romance
Shared: Nudity · Hentai · Simulation

West Sweety
Shared: Sexual Content · Casual · Nudity

Dream Date
Shared: Sexual Content · Casual · Nudity

Summer Memories
Shared: Sexual Content · Nudity · Hentai

Dusk Pub - Adult Only
Shared: Sexual Content · Simulation · Casual

Lost
Shared: Casual · Sexual Content · Nudity

Hamidashi Creative
Shared: Casual · Adventure · Sexual Content

LEWDAPOCALYPSE Hentai Evil
Shared: Sexual Content · Nudity · Hentai

Summer Pockets
Shared: Adventure · Casual · Visual Novel

Pretty Angel
Shared: Casual · Sexual Content · Nudity

NEKOPARA Vol. 4
Shared: Sexual Content · Hentai · Nudity

Lovelorn sanatoriumⅠ
Shared: Adventure · Sexual Content · Nudity

Maitetsu:Last Run!!
Shared: Sexual Content · Casual · Visual Novel

NEKOPARA Vol. 1
Shared: Hentai · Sexual Content · Nudity

月影魅像-解放之羽-
Shared: Adventure · Sexual Content · Casual

Book of Yog Idle RPG
Shared: Simulation · Nudity · Casual

Streamer Life Simulator
Shared: Simulation · Casual · Nudity

LAMUNATION! -international-
Shared: Sexual Content · Casual · Adventure

Your Mom
Shared: Nudity · Simulation · Sexual Content

Gaokao.Love.100Days
Shared: Simulation · Visual Novel · Nudity

Seifuku Kanojo
Shared: Casual · Simulation · Sexual Content

NEKOPARA Vol. 3
Shared: Sexual Content · Hentai · Nudity