Games like Zombie Hunter, Inc.
Games like Zombie Hunter, Inc. include The Ascent, Escape From Duckov, Warframe, Last Epoch, and Wolcen: Lords of Mayhem. We matched them by the tags players give Zombie Hunter, Inc. on Steam (Action RPG, Top-Down Shooter, Looter Shooter, Twin Stick Shooter, and Shooter): closest matches first, and among equally close ones the better-known games.

The Ascent
Shared: Top-Down Shooter · RPG · Shooter

Escape From Duckov
Shared: Looter Shooter · Top-Down Shooter · Shooter

Warframe
Shared: Action RPG · Looter Shooter · RPG

Last Epoch
Shared: Action RPG · RPG · Isometric

Wolcen: Lords of Mayhem
Shared: Action RPG · RPG · Isometric

Relic Hunters Legend
Shared: Action RPG · Looter Shooter · Shooter

Alien Shooter
Shared: Shooter · Action RPG · Top-Down Shooter

Borderlands 2
Shared: Shooter · Looter Shooter · RPG

Path of Exile 2
Shared: Action RPG · RPG · Isometric

Alien Shooter 2: Reloaded
Shared: Looter Shooter · Action RPG · Shooter

Insect Swarm
Shared: Top-Down Shooter · Shooter · Twin Stick Shooter

Killsquad
Shared: Top-Down Shooter · Action RPG · RPG

Relic Hunters Zero: Remix
Shared: Looter Shooter · Top-Down Shooter · Twin Stick Shooter

No Rest for the Wicked
Shared: Action RPG · RPG · Isometric

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

Grim Dawn
Shared: Action RPG · RPG · Isometric

The First Descendant
Shared: Looter Shooter · RPG · Shooter

Shadowgrounds Survivor
Shared: Top-Down Shooter · Shooter · Action RPG

Titan Quest II
Shared: Action RPG · RPG · 3D

Borderlands 3
Shared: Looter Shooter · RPG · Shooter

SYNTHETIK: Legion Rising
Shared: Top-Down Shooter · Twin Stick Shooter · Shooter

Yet Another Zombie Survivors
Shared: Top-Down Shooter · Action RPG · RPG

SYNTHETIK 2
Shared: Top-Down Shooter · Twin Stick Shooter · Shooter

Path of Exile
Shared: Action RPG · RPG · Isometric