Games like Weapon Hacker
Games like Weapon Hacker include Skul: The Hero Slayer, Hollow Knight, Hollow Knight: Silksong, Dead Cells, and Rogue Legacy 2. We matched them by the tags players give Weapon Hacker on Steam (Indie, Action, Metroidvania, Roguelite, and Platformer): closest matches first, and among equally close ones the better-known games.

Skul: The Hero Slayer
Shared: Indie · Action · Roguelite

Hollow Knight
Shared: Metroidvania · Platformer · Indie

Hollow Knight: Silksong
Shared: Indie · Metroidvania · Platformer

Dead Cells
Shared: Metroidvania · Roguelite · Action Roguelike

Rogue Legacy 2
Shared: Metroidvania · Action · Indie

Rogue Legacy
Shared: Indie · Platformer · Action

The Binding of Isaac
Shared: Indie · Action Roguelike · Action

Hades
Shared: Indie · Roguelite · Action

The Binding of Isaac: Rebirth
Shared: Indie · Action Roguelike · Replay Value

Spelunky
Shared: Indie · Platformer · Action Roguelike

ScourgeBringer
Shared: Indie · Action · Roguelite

Risk of Rain (2013)
Shared: Indie · Action · Platformer

Dust: An Elysian Tail
Shared: Action · Indie · Metroidvania

Ori and the Will of the Wisps
Shared: Metroidvania · Platformer · Action

Dungreed
Shared: Action · Indie · Roguelite

Vampire Survivors
Shared: Roguelite · Indie · Action Roguelike

Nine Sols
Shared: Metroidvania · Action · Platformer

BlazBlue Entropy Effect
Shared: Action · Action Roguelike · Platformer

Axiom Verge
Shared: Indie · Metroidvania · Action

Caveblazers
Shared: Platformer · Roguelite · Action Roguelike

Gato Roboto
Shared: Indie · Action · Metroidvania

Blasphemous
Shared: Metroidvania · Indie · Action

Spelunky 2
Shared: Platformer · Indie · Procedural Generation

UnEpic
Shared: Indie · Metroidvania · Action