Games like Au-Delà
Games like Au-Delà include Stray, The Room, The Room 4: Old Sins, That's not my Neighbor, and Endacopia. We matched them by the tags players give Au-Delà on Steam (Horror, Exploration, Puzzle, Casual, and Adventure): closest matches first, and among equally close ones the better-known games.

Stray
Shared: Adventure · Exploration · Puzzle

The Room
Shared: Puzzle · Point & Click · Adventure

The Room 4: Old Sins
Shared: Puzzle · Adventure · Point & Click

That's not my Neighbor
Shared: Casual · Horror · Adventure

Endacopia
Shared: Horror · Adventure · Point & Click

The Room Two
Shared: Puzzle · Horror · Point & Click

Five Nights at Freddy's: Into the Pit
Shared: Horror · Adventure · Exploration

There Is No Game: Wrong Dimension
Shared: Puzzle · Adventure · Point & Click

Rusty Lake Paradise
Shared: Puzzle · Horror · Point & Click

ANIMAL WELL
Shared: Exploration · Puzzle · Horror

The Room Three
Shared: Puzzle · Adventure · Point & Click

Fran Bow
Shared: Horror · Puzzle · Point & Click

Please, Don’t Touch Anything
Shared: Puzzle · Point & Click · Casual

Gorogoa
Shared: Puzzle · Casual · Point & Click

Slime Rancher
Shared: Exploration · Adventure · Cute

Sally Face - Episode One
Shared: Horror · Puzzle · Adventure

OneShot
Shared: Puzzle · Adventure · Cute

Carto
Shared: Puzzle · Exploration · Adventure

Morphopolis
Shared: Puzzle · Casual · Point & Click

FEZ
Shared: Puzzle · Exploration · Adventure

Hidden Folks
Shared: Casual · Puzzle · Point & Click

TOEM: A Photo Adventure
Shared: Puzzle · Exploration · Adventure

Storyteller
Shared: Puzzle · Point & Click · Adventure

Little Misfortune
Shared: Horror · Point & Click · Adventure