Games like DarkMatter: The Strange Messenger
Games like DarkMatter: The Strange Messenger include Wolcen: Lords of Mayhem, Path of Exile 2, Grim Dawn, Black Myth: Wukong, and Last Epoch. We matched them by the tags players give DarkMatter: The Strange Messenger on Steam (2D Platformer, Hack and Slash, Platformer, Action RPG, and 2D Fighter): closest matches first, and among equally close ones the better-known games.

Wolcen: Lords of Mayhem
Shared: Hack and Slash · Action RPG · RPG

Path of Exile 2
Shared: Hack and Slash · Action RPG · RPG

Grim Dawn
Shared: Hack and Slash · Action RPG · RPG

Black Myth: Wukong
Shared: Action RPG · RPG · Action

Last Epoch
Shared: Hack and Slash · Action RPG · RPG

Anomaly Agent
Shared: 2D Platformer · Hack and Slash · Platformer

Path of Exile
Shared: Hack and Slash · Action RPG · RPG

Eastern Exorcist
Shared: Hack and Slash · RPG · Action

Diablo® IV
Shared: Hack and Slash · Action RPG · RPG

Dust: An Elysian Tail
Shared: Platformer · RPG · Action

No Rest for the Wicked
Shared: Hack and Slash · Action RPG · RPG

Warhammer 40,000: Inquisitor - Martyr
Shared: Hack and Slash · Action RPG · RPG

Torchlight II
Shared: Hack and Slash · Action RPG · RPG

The Incredible Adventures of Van Helsing
Shared: Hack and Slash · Action RPG · RPG

Bastion
Shared: Hack and Slash · RPG · Action

Katana ZERO
Shared: Platformer · 2D Platformer · Hack and Slash

Hades II
Shared: Hack and Slash · Action · RPG

Blasphemous 2
Shared: 2D Platformer · Hack and Slash · Platformer

Castlevania: Belmont's Curse
Shared: 2D Platformer · Action RPG · Platformer

Hero Siege
Shared: Hack and Slash · Action RPG · RPG

Spiritfall
Shared: 2D Platformer · Hack and Slash · 2D Fighter

Pizza Tower
Shared: 2D Platformer · Platformer · Cartoony

Torchlight III
Shared: Hack and Slash · RPG · Action RPG

The Slormancer
Shared: Hack and Slash · Action RPG · RPG