Games like Gachi Gang
Games like Gachi Gang include Lost, Florence, Pikuniku, 人间 The Lost We Lost, and Epiphyllum in Love. We matched them by the tags players give Gachi Gang on Steam (Indie, Casual, Adventure, and Nudity): closest matches first, and among equally close ones the better-known games.

Lost
Shared: Casual · Nudity · Indie

Florence
Shared: Indie · Casual · Adventure

Pikuniku
Shared: Indie · Casual · Adventure

人间 The Lost We Lost
Shared: Indie · Casual · Nudity

Epiphyllum in Love
Shared: Indie · Casual · Adventure

Plug & Play
Shared: Indie · Casual · Adventure

Streamer Life Simulator
Shared: Casual · Indie · Nudity

Wet Girl
Shared: Casual · Nudity · Indie

Notes of Soul
Shared: Adventure · Indie · Nudity

There Is No Game: Wrong Dimension
Shared: Indie · Adventure · Casual

Crimson Imprint plus -Nonexistent Christmas-
Shared: Indie · Casual · Nudity

West Sweety
Shared: Casual · Nudity · Indie

Hentai Vs Furries
Shared: Nudity · Adventure · Casual

符文女孩/Rune Girl
Shared: Casual · Indie · Adventure

LEWDAPOCALYPSE Hentai Evil
Shared: Nudity · Indie · Casual

Donut County
Shared: Indie · Casual · Adventure

My Cute Fuhrer
Shared: Indie · Casual · Adventure

Sixtieth Kilometer
Shared: Indie · Casual · Adventure

Melvor Idle
Shared: Casual · Indie · Adventure

Dream Date
Shared: Casual · Nudity · Indie

Running Through Russia
Shared: Indie · Casual · Adventure

Seek Girl Ⅳ
Shared: Casual · Indie · Nudity

Chained Together
Shared: Adventure · Casual · Indie

A Short Hike
Shared: Indie · Adventure · Casual