Games like Platonic
Games like Platonic include The Witness, Firewatch, Big Walk, Outer Wilds, and What Remains of Edith Finch. We matched them by the tags players give Platonic on Steam (Adventure, Puzzle, Exploration, Logic, and Difficult): closest matches first, and among equally close ones the better-known games.

The Witness
Shared: Puzzle · Exploration · Adventure

Firewatch
Shared: Adventure · Atmospheric · Walking Simulator

Big Walk
Shared: Puzzle · Exploration · Adventure

Outer Wilds
Shared: Exploration · Adventure · Puzzle

What Remains of Edith Finch
Shared: Adventure · Exploration · Walking Simulator

Riven
Shared: Adventure · Puzzle · Exploration

Antichamber
Shared: Puzzle · Exploration · Adventure

Obduction
Shared: Adventure · Puzzle · Exploration

INFRA
Shared: Puzzle · Exploration · Adventure

Quern - Undying Thoughts
Shared: Adventure · Puzzle · Exploration

Stray
Shared: Adventure · Exploration · Atmospheric

Blue Prince
Shared: Puzzle · Exploration · Adventure

The Talos Principle
Shared: Puzzle · Atmospheric · Adventure

The Long Dark
Shared: Exploration · Adventure · Atmospheric

Call of the Sea
Shared: Adventure · Puzzle · Exploration

Chants of Sennaar
Shared: Adventure · Puzzle · Atmospheric

AER Memories of Old
Shared: Adventure · Exploration · Atmospheric

Journey
Shared: Adventure · Exploration · Atmospheric

Islands of Insight
Shared: Puzzle · Exploration · Adventure

Slime Rancher
Shared: Adventure · Exploration · First-Person

Taiji
Shared: Puzzle · Adventure · Difficult

Spirit of the North
Shared: Adventure · Exploration · Puzzle

RiME
Shared: Adventure · Puzzle · Exploration

Cairn
Shared: Exploration · Adventure · Difficult