Games like Photoelektric
Games like Photoelektric include Portal, Portal 2, LIMBO, Planet of Lana, and Defy Gravity Extended. We matched them by the tags players give Photoelektric on Steam (3D Platformer, Action, Casual, Puzzle Platformer, and Atmospheric): closest matches first, and among equally close ones the better-known games.

Portal
Shared: 3D Platformer · Puzzle Platformer · Puzzle

Portal 2
Shared: Platformer · Puzzle Platformer · 3D Platformer

LIMBO
Shared: Puzzle Platformer · Platformer · Atmospheric

Planet of Lana
Shared: Action · Puzzle Platformer · Atmospheric

Defy Gravity Extended
Shared: Puzzle Platformer · Platformer · Action

Gorilla Tag
Shared: VR · 3D Platformer · Action

BONEWORKS
Shared: VR · Action · Physics

EDGE
Shared: Puzzle Platformer · Action · Platformer

Refunct
Shared: 3D Platformer · Puzzle Platformer · Casual

Chained Together
Shared: Casual · Platformer · 3D Platformer

A Story About My Uncle
Shared: 3D Platformer · Atmospheric · Platformer

Human Fall Flat
Shared: Puzzle Platformer · Physics · Action

Shady Part of Me
Shared: Atmospheric · 3D Platformer · Platformer

Trine 2: Complete Story
Shared: Puzzle Platformer · Platformer · Puzzle

BEEP
Shared: Platformer · Action · Physics

FIVE NIGHTS AT FREDDY'S: HELP WANTED
Shared: VR · Action · Casual

Quantum Conundrum
Shared: 3D Platformer · Puzzle Platformer · Casual

Ballance
Shared: Casual · Puzzle Platformer · Physics

VHOLUME
Shared: 3D Platformer · Atmospheric · Casual

Nihilumbra
Shared: Casual · Platformer · Puzzle Platformer

Tiny and Big: Grandpas Leftovers
Shared: 3D Platformer · Platformer · Physics

Trine 3: The Artifacts of Power
Shared: 3D Platformer · Puzzle Platformer · Action

Seen
Shared: Atmospheric · Action · Platformer

Climber Animals: Together
Shared: Casual · 3D Platformer · Physics