Games like Door2:Key - Path to Heaven DLC
Games like Door2:Key - Path to Heaven DLC include The Witness, Firewatch, Outer Wilds, Big Walk, and Antichamber. We matched them by the tags players give Door2:Key - Path to Heaven DLC on Steam (Adventure, Indie, Relaxing, Puzzle, and Open World): closest matches first, and among equally close ones the better-known games.

The Witness
Shared: Puzzle · Exploration · Open World

Firewatch
Shared: Adventure · Atmospheric · First-Person

Outer Wilds
Shared: Adventure · Exploration · Puzzle

Big Walk
Shared: Puzzle · Adventure · Open World

Antichamber
Shared: Indie · Puzzle · First-Person

What Remains of Edith Finch
Shared: Adventure · Atmospheric · Exploration

The Long Dark
Shared: Open World · Adventure · Exploration

Obduction
Shared: Adventure · Indie · Puzzle

AER Memories of Old
Shared: Adventure · Indie · Relaxing

INFRA
Shared: Puzzle · Adventure · Exploration

Journey
Shared: Adventure · Indie · Relaxing

NaissanceE
Shared: Indie · Exploration · Adventure

A Short Hike
Shared: Adventure · Relaxing · Indie

Stray
Shared: Adventure · Exploration · Atmospheric

Rain World
Shared: Indie · Difficult · Exploration

Fallout 4
Shared: Open World · Adventure · Exploration

Cairn
Shared: Indie · Adventure · Exploration

Blue Prince
Shared: Puzzle · Exploration · Indie

Quern - Undying Thoughts
Shared: Adventure · Puzzle · Exploration

The Talos Principle
Shared: Puzzle · First-Person · Adventure

Return of the Obra Dinn
Shared: Puzzle · Indie · Adventure

Eastshade
Shared: Adventure · Open World · Exploration

RiME
Shared: Adventure · Puzzle · Exploration

Kairo
Shared: Indie · Puzzle · Exploration