Games like Flux Empyrean
Games like Flux Empyrean include Outer Wilds, Firewatch, What Remains of Edith Finch, DEATH STRANDING DIRECTOR'S CUT, and Deliver Us The Moon. We matched them by the tags players give Flux Empyrean on Steam (Exploration, Walking Simulator, Mystery, Story Rich, and Lore-Rich): closest matches first, and among equally close ones the better-known games.

Outer Wilds
Shared: Exploration · Mystery · Story Rich

Firewatch
Shared: Walking Simulator · Story Rich · Mystery

What Remains of Edith Finch
Shared: Walking Simulator · Story Rich · Mystery

DEATH STRANDING DIRECTOR'S CUT
Shared: Walking Simulator · Story Rich · Exploration

Deliver Us The Moon
Shared: Adventure · Sci-fi · Story Rich

The Witness
Shared: Exploration · Walking Simulator · Puzzle

Blue Prince
Shared: Exploration · Mystery · Story Rich

The Talos Principle
Shared: Story Rich · Sci-fi · Exploration

Starfield
Shared: Exploration · Sci-fi · Singleplayer

Fallout 4
Shared: Exploration · Singleplayer · Adventure

Quern - Undying Thoughts
Shared: Mystery · Exploration · Walking Simulator

Tacoma
Shared: Walking Simulator · Story Rich · Exploration

Murders on the Yangtze River
Shared: Story Rich · Exploration · Mystery

INFRA
Shared: Exploration · Walking Simulator · Mystery

No Man's Sky
Shared: Exploration · Sci-fi · Space

The Talos Principle 2
Shared: Story Rich · Exploration · Walking Simulator

Obduction
Shared: Exploration · Adventure · Mystery

DREDGE
Shared: Exploration · Mystery · Adventure

The Vanishing of Ethan Carter
Shared: Mystery · Walking Simulator · Exploration

Stray
Shared: Exploration · Adventure · Singleplayer

Riven
Shared: Exploration · Adventure · Story Rich

Journey
Shared: Exploration · Adventure · Walking Simulator

SOMA
Shared: Story Rich · Exploration · Sci-fi

Gone Home
Shared: Walking Simulator · Exploration · Story Rich