Games like Simple Game
Games like Simple Game include What Remains of Edith Finch, Outer Wilds, MiSide, Sally Face - Episode One, and Blue Prince. We matched them by the tags players give Simple Game on Steam (First-Person, 3D, Puzzle, Dark, and 2D): closest matches first, and among equally close ones the better-known games.

What Remains of Edith Finch
Shared: First-Person · Story Rich · Mystery

Outer Wilds
Shared: Exploration · Story Rich · Puzzle

MiSide
Shared: First-Person · Story Rich · 3D

Sally Face - Episode One
Shared: Story Rich · Dark · Puzzle

Blue Prince
Shared: Puzzle · First-Person · Exploration

Firewatch
Shared: First-Person · Story Rich · Mystery

SOMA
Shared: Dark · Story Rich · Psychological Horror

Poppy Playtime
Shared: First-Person · Puzzle · Dark

Inside the Backrooms
Shared: Puzzle · First-Person · Psychological Horror

Layers of Fear (2016)
Shared: First-Person · Psychological Horror · Story Rich

Riven
Shared: Puzzle · First-Person · Exploration

Garten of Banban
Shared: First-Person · Puzzle · 3D

Amanda the Adventurer
Shared: First-Person · Puzzle · Story Rich

INFRA
Shared: Puzzle · First-Person · Exploration

The Talos Principle 2
Shared: Puzzle · First-Person · Story Rich

The Witness
Shared: First-Person · Puzzle · Exploration

The Exit 8
Shared: Puzzle · Exploration · First-Person

Quern - Undying Thoughts
Shared: Puzzle · First-Person · Mystery

Amnesia: A Machine For Pigs
Shared: First-Person · Story Rich · Exploration

ANIMAL WELL
Shared: Puzzle · Exploration · 2D

Bendy and the Ink Machine
Shared: First-Person · Puzzle · Dark

Portal 2
Shared: First-Person · Puzzle · Story Rich

Amnesia: Rebirth
Shared: First-Person · Puzzle · Story Rich

The Room 4: Old Sins
Shared: Puzzle · Mystery · First-Person