Games like 窓の中の先にあるもの
Games like 窓の中の先にあるもの include INSIDE, Little Nightmares, LIMBO, Little Nightmares II, and Seen. We matched them by the tags players give 窓の中の先にあるもの on Steam (Casual, Puzzle, Puzzle Platformer, Sokoban, and 2.5D): closest matches first, and among equally close ones the better-known games.

INSIDE
Shared: Puzzle Platformer · 2.5D · Atmospheric

Little Nightmares
Shared: Puzzle Platformer · Atmospheric · Puzzle

LIMBO
Shared: Puzzle Platformer · Puzzle · Indie

Little Nightmares II
Shared: Puzzle · Atmospheric · Dark

Seen
Shared: Puzzle · Dark · Indie

Portal
Shared: Puzzle · Puzzle Platformer · Singleplayer

FAR: Lone Sails
Shared: Atmospheric · Puzzle · 2.5D

Assemble with Care
Shared: Casual · Puzzle · Indie

Pinstripe
Shared: Casual · Puzzle Platformer · Atmospheric

Portal 2
Shared: Puzzle · Puzzle Platformer · Singleplayer

Planet of Lana
Shared: Puzzle Platformer · Puzzle · Atmospheric

The Last Campfire
Shared: Puzzle · Atmospheric · Indie

GRIS
Shared: Atmospheric · Indie · Female Protagonist

Trine 2: Complete Story
Shared: Puzzle Platformer · Puzzle · Fantasy

Gorogoa
Shared: Puzzle · Casual · Atmospheric

Brothers - A Tale of Two Sons
Shared: Atmospheric · Puzzle · Indie

Little Inferno
Shared: Casual · Puzzle · Indie

Nihilumbra
Shared: Puzzle · Casual · Puzzle Platformer

The Room
Shared: Puzzle · Atmospheric · Casual

Never Alone (Kisima Ingitchuna)
Shared: Atmospheric · Puzzle · Indie

Unpacking
Shared: Casual · Puzzle · Story Rich

Shady Part of Me
Shared: Puzzle · Atmospheric · Indie

Fran Bow
Shared: Puzzle · Dark · Story Rich

Sally Face - Episode One
Shared: Puzzle · Dark · Indie