Games like 「3」
Games like 「3」 include Raging Loop, Threefold Recital, AI: The Somnium Files, Stray, and Magical Girl Witch Trials. We matched them by the tags players give 「3」 on Steam (Adventure, Visual Novel, 2D Platformer, Cute, and Conspiracy): closest matches first, and among equally close ones the better-known games.

Raging Loop
Shared: Visual Novel · Adventure · Mystery

Threefold Recital
Shared: Visual Novel · Mystery · 2D Platformer

AI: The Somnium Files
Shared: Visual Novel · Adventure · Mystery

Stray
Shared: Adventure · Cute · Singleplayer

Magical Girl Witch Trials
Shared: Visual Novel · Cute · Mystery

Higurashi When They Cry Hou - Ch.1 Onikakushi
Shared: Visual Novel · Mystery · Adventure

Stellar Code
Shared: Adventure · Visual Novel · 2D Platformer

Celeste
Shared: 2D Platformer · Adventure · Indie

Marco & The Galaxy Dragon
Shared: Visual Novel · Adventure · Cute

Tiny Bunny
Shared: Visual Novel · Adventure · 2D

Florence
Shared: Adventure · Cute · Indie

Fox Hime Zero
Shared: Visual Novel · Cute · Adventure

Sanfu
Shared: Adventure · Mystery · Visual Novel

Lay a Beauty to Rest: The Darkness Peach Blossom Spring
Shared: Adventure · Visual Novel · Mystery

MO:Astray
Shared: Adventure · Indie · Sci-fi

Urban Myth Dissolution Center
Shared: Visual Novel · Adventure · Mystery

AI: THE SOMNIUM FILES - nirvanA Initiative
Shared: Visual Novel · Adventure · Mystery

Capsule Lover
Shared: Adventure · Visual Novel · Cute

Kugayama Shiori's Death Diary
Shared: Adventure · Visual Novel · 2D Platformer

SANABI
Shared: Adventure · 2D Platformer · 2D

Slime Rancher
Shared: Adventure · Cute · Singleplayer

Far Away
Shared: Visual Novel · Cute · Adventure

Phoenix Wright: Ace Attorney Trilogy
Shared: Visual Novel · Mystery · Adventure

eden*
Shared: Visual Novel · Adventure · Cute