Games like DEUS EX MACHINA: Episode 1
Games like DEUS EX MACHINA: Episode 1 include Portal 2, Five Nights at Freddy's: Secret of the Mimic, Indiana Jones and the Great Circle, Atomic Heart, and Ghostrunner. We matched them by the tags players give DEUS EX MACHINA: Episode 1 on Steam (Puzzle, Action-Adventure, 3D, First-Person, and Cyberpunk): closest matches first, and among equally close ones the better-known games.

Portal 2
Shared: Puzzle · First-Person · Action-Adventure

Five Nights at Freddy's: Secret of the Mimic
Shared: First-Person · 3D · Action-Adventure

Indiana Jones and the Great Circle
Shared: Action-Adventure · Puzzle · First-Person

Atomic Heart
Shared: Action-Adventure · Puzzle · Action

Ghostrunner
Shared: Cyberpunk · First-Person · Action

Portal
Shared: Puzzle · First-Person · Sci-fi

VLADiK BRUTAL
Shared: First-Person · Puzzle · Action-Adventure

Nobody Wants to Die
Shared: 3D · Detective · Cyberpunk

BONEWORKS
Shared: Puzzle · VR · Action

Mirror's Edge™
Shared: Action-Adventure · First-Person · Puzzle

BONELAB
Shared: VR · First-Person · Action-Adventure

Shadows of Doubt
Shared: Detective · Noir · First-Person

The Talos Principle
Shared: Puzzle · First-Person · Sci-fi

Amnesia: Rebirth
Shared: Action-Adventure · Puzzle · First-Person

SUPERHOT VR
Shared: Puzzle · VR · First-Person

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

Escape Simulator 2
Shared: Puzzle · First-Person · 3D

The Talos Principle 2
Shared: Puzzle · First-Person · Sci-fi

Resident Evil Requiem
Shared: First-Person · Action-Adventure · Action

Time Lock VR 1
Shared: Puzzle · Action-Adventure · 3D

Return of the Obra Dinn
Shared: Puzzle · Detective · First-Person

Cyberpunk 2077
Shared: Cyberpunk · First-Person · Sci-fi

PRAGMATA
Shared: Action · Action-Adventure · Sci-fi

METAL EDEN
Shared: 3D · Cyberpunk · Action