Games like 副作用之瞳 - 第一卷
Games like 副作用之瞳 - 第一卷 include Senren * Banka, Vampires' Melody, 泡沫冬景, DAVE THE DIVER, and Summer Pockets. We matched them by the tags players give 副作用之瞳 - 第一卷 on Steam (Casual, Adventure, Dating Sim, and Downloadable Content): closest matches first, and among equally close ones the better-known games.

Senren * Banka
Shared: Dating Sim · Casual · Adventure

Vampires' Melody
Shared: Casual · Adventure · Dating Sim

泡沫冬景
Shared: Casual · Adventure · Dating Sim

DAVE THE DIVER
Shared: Casual · Adventure

Summer Pockets
Shared: Adventure · Casual · Dating Sim

Epiphyllum in Love
Shared: Casual · Adventure · Dating Sim

Hamidashi Creative
Shared: Casual · Adventure · Dating Sim

Aokana - Four Rhythms Across the Blue
Shared: Casual · Adventure · Dating Sim

Chained Together
Shared: Adventure · Casual

ATRI -My Dear Moments-
Shared: Casual · Dating Sim · Adventure

Koi x Shin Ai Kanojo
Shared: Casual · Adventure · Dating Sim

Tricolour Lovestory
Shared: Dating Sim · Casual · Adventure

Florence
Shared: Casual · Adventure · Dating Sim

First Date : Late To Date
Shared: Casual · Adventure · Dating Sim

Otome Riron to Sono Shuuhen -École de Paris-
Shared: Casual · Adventure · Dating Sim

LOOPERS
Shared: Casual · Adventure · Dating Sim

True Love ~Confide to the Maple~
Shared: Dating Sim · Casual · Adventure

Fox Hime
Shared: Casual · Adventure · Dating Sim

Across the Obelisk
Shared: Casual · Adventure

My Furry Protogen 🐾
Shared: Adventure · Casual · Dating Sim

LoveChoice
Shared: Dating Sim · Casual · Adventure

Cross Princess
Shared: Casual · Adventure · Dating Sim

Some Some Convenience Store
Shared: Dating Sim · Casual · Adventure

Emily is Away <3
Shared: Dating Sim · Casual · Adventure