Games like The Dreadful Whispers
Games like The Dreadful Whispers include Hollow Knight, GRIS, LIMBO, Hollow Knight: Silksong, and Little Nightmares. We matched them by the tags players give The Dreadful Whispers on Steam (Indie, Adventure, 2D, Platformer, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Platformer · Indie · 2D

GRIS
Shared: Indie · Adventure · Great Soundtrack

LIMBO
Shared: Indie · Platformer · Puzzle Platformer

Hollow Knight: Silksong
Shared: Indie · 2D · Great Soundtrack

Little Nightmares
Shared: Adventure · Singleplayer · Atmospheric

OneShot
Shared: Indie · Great Soundtrack · Atmospheric

FEZ
Shared: Indie · Platformer · Adventure

Ori and the Will of the Wisps
Shared: Platformer · Adventure · Singleplayer

Celeste
Shared: Indie · Platformer · Great Soundtrack

Seen
Shared: Indie · Adventure · Singleplayer

Nihilumbra
Shared: Indie · Adventure · Platformer

Out There Somewhere
Shared: Indie · Platformer · Adventure

Neva
Shared: Adventure · Indie · Platformer

Little Nightmares II
Shared: Adventure · Singleplayer · Atmospheric

Braid
Shared: Indie · Platformer · Puzzle Platformer

BEEP
Shared: Indie · Adventure · Platformer

FAR: Lone Sails
Shared: Adventure · Indie · Atmospheric

Chants of Sennaar
Shared: Adventure · Indie · Singleplayer

INSIDE
Shared: Indie · Atmospheric · Puzzle Platformer

Brothers - A Tale of Two Sons
Shared: Adventure · Indie · Atmospheric

Shovel Knight: Treasure Trove
Shared: Platformer · Indie · 2D

Seasons after Fall
Shared: Adventure · Indie · Platformer

Contrast
Shared: Indie · Adventure · Platformer

Defy Gravity Extended
Shared: Indie · Platformer · 2D