Games like Mirage: Ignis Fatuus
Games like Mirage: Ignis Fatuus include LIMBO, Portal 2, The Pedestrian, Chained Together, and FEZ. We matched them by the tags players give Mirage: Ignis Fatuus on Steam (Puzzle Platformer, Experimental, Grid-Based Movement, Logic, and Indie): closest matches first, and among equally close ones the better-known games.

LIMBO
Shared: Puzzle Platformer · Indie · Puzzle

Portal 2
Shared: Puzzle Platformer · Puzzle · Platformer

The Pedestrian
Shared: Puzzle Platformer · Logic · Puzzle

Chained Together
Shared: Puzzle Platformer · Platformer · Adventure

FEZ
Shared: Indie · Puzzle · Platformer

Murders on the Yangtze River
Shared: Puzzle · Puzzle Platformer · Indie

Portal
Shared: Puzzle Platformer · Puzzle · 3D Platformer

Moncage
Shared: Puzzle · Indie · Experimental

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

Papo & Yo
Shared: Puzzle Platformer · Indie · 3D Platformer

COCOON
Shared: Puzzle Platformer · Puzzle · Indie

The Last Campfire
Shared: Puzzle · Indie · Adventure

Little Nightmares
Shared: Puzzle Platformer · Puzzle · Indie

EDGE
Shared: Puzzle Platformer · Indie · Puzzle

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

Defy Gravity Extended
Shared: Puzzle Platformer · Indie · Puzzle

Nihilumbra
Shared: Indie · Puzzle Platformer · Puzzle

Braid
Shared: Puzzle Platformer · Puzzle · Indie

Squishy the Suicidal Pig
Shared: Puzzle Platformer · Indie · Puzzle

Shady Part of Me
Shared: Indie · Puzzle · Puzzle Platformer

Refunct
Shared: Puzzle Platformer · 3D Platformer · Platformer

I hate this game
Shared: Indie · Puzzle · Logic

Hue
Shared: Puzzle Platformer · Indie · Puzzle

Viewfinder
Shared: Puzzle Platformer · Puzzle · Adventure