Games like NOTICE
Games like NOTICE include Milk outside a bag of milk outside a bag of milk, Hylics, Aliya: Timelink, OPUS: Echo of Starsong - Full Bloom Edition, and The Life and Suffering of Sir Brante. We matched them by the tags players give NOTICE on Steam (RPG, Psychedelic, Visual Novel, Interactive Fiction, and 2D): closest matches first, and among equally close ones the better-known games.

Milk outside a bag of milk outside a bag of milk
Shared: Psychedelic · Visual Novel · 2D

Hylics
Shared: RPG · Psychedelic · Surreal

Aliya: Timelink
Shared: RPG · Visual Novel · Interactive Fiction

OPUS: Echo of Starsong - Full Bloom Edition
Shared: Visual Novel · Interactive Fiction · 2D

The Life and Suffering of Sir Brante
Shared: RPG · Interactive Fiction · Visual Novel

Beacon Pines
Shared: Visual Novel · Exploration · Interactive Fiction

Disco Elysium - The Final Cut
Shared: RPG · Story Rich · Visual Novel

Billionaire Lovers
Shared: RPG · Visual Novel · Interactive Fiction

The NOexistenceN of you AND me
Shared: Visual Novel · Interactive Fiction · Story Rich

A Bird Story
Shared: Interactive Fiction · RPG · Story Rich

To the Moon
Shared: Interactive Fiction · RPG · Story Rich

DAVE THE DIVER
Shared: Exploration · Relaxing · RPG

SEASON: A letter to the future
Shared: Interactive Fiction · Visual Novel · Exploration

Finding Paradise
Shared: RPG · 2D · Story Rich

Suzerain
Shared: Visual Novel · Interactive Fiction · RPG

Until Then
Shared: Visual Novel · Interactive Fiction · 2D

Coffee Talk
Shared: Visual Novel · Interactive Fiction · Relaxing

Impostor Factory
Shared: RPG · 2D · Story Rich

Stiff Neck
Shared: RPG · Visual Novel · Psychedelic

Mirror 2: Project X
Shared: Visual Novel · Interactive Fiction · RPG

灾厄黑龙与谎言公主
Shared: RPG · Visual Novel · Interactive Fiction

Everhood
Shared: Psychedelic · 2D · RPG

Manifold Garden
Shared: Psychedelic · Surreal · Exploration

Sanfu
Shared: RPG · 2D · Visual Novel