Games like Rumbral
Games like Rumbral include INSIDE, LIMBO, Little Nightmares, Seen, and Little Nightmares II. We matched them by the tags players give Rumbral on Steam (Platformer, Puzzle, 2.5D, Dark, and Singleplayer): closest matches first, and among equally close ones the better-known games.

INSIDE
Shared: 2.5D · Dark · Puzzle Platformer

LIMBO
Shared: Puzzle · Platformer · Puzzle Platformer

Little Nightmares
Shared: Singleplayer · Puzzle · Dark

Seen
Shared: Dark · Puzzle · Singleplayer

Little Nightmares II
Shared: Puzzle · Singleplayer · Dark

Portal 2
Shared: Platformer · Puzzle · Singleplayer

FEZ
Shared: Platformer · Puzzle · Singleplayer

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

The Pedestrian
Shared: Puzzle · Platformer · Puzzle Platformer

Poppy Playtime
Shared: Puzzle · Singleplayer · Dark

The Room
Shared: Puzzle · Mystery · Singleplayer

Braid
Shared: Puzzle · Platformer · Puzzle Platformer

DARQ: Complete Edition
Shared: Puzzle · Dark · Singleplayer

Planet of Lana
Shared: Puzzle · Puzzle Platformer · Platformer

FAR: Lone Sails
Shared: Singleplayer · 2.5D · Puzzle

Pinstripe
Shared: Platformer · Dark · Puzzle

The Room Three
Shared: Puzzle · Mystery · Singleplayer

The Room Two
Shared: Puzzle · Mystery · Singleplayer

Max: The Curse of Brotherhood
Shared: Platformer · Puzzle · Puzzle Platformer

Creepy Tale
Shared: Puzzle · Platformer · Puzzle Platformer

Laughing to Die
Shared: Puzzle · Platformer · Casual

Nihilumbra
Shared: Platformer · Puzzle · Puzzle Platformer

Defy Gravity Extended
Shared: Platformer · Puzzle · Puzzle Platformer

ANIMAL WELL
Shared: Puzzle · Platformer · Puzzle Platformer

