Games like Nongunz: Doppelganger Edition
Games like Nongunz: Doppelganger Edition include Dead Cells, Skul: The Hero Slayer, The Binding of Isaac: Rebirth, Enter the Gungeon, and Wizard of Legend. We matched them by the tags players give Nongunz: Doppelganger Edition on Steam (Action Roguelike, Local Co-Op, Difficult, Action, and Adventure): closest matches first, and among equally close ones the better-known games.

Dead Cells
Shared: Action Roguelike · Adventure · Metroidvania

Skul: The Hero Slayer
Shared: Action Roguelike · Action · 2D

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Difficult · Local Co-Op

Enter the Gungeon
Shared: Action Roguelike · Difficult · Local Co-Op

Wizard of Legend
Shared: Action Roguelike · Local Co-Op · Action

Vampire Survivors
Shared: Action Roguelike · Roguelite · 2D

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

Risk of Rain (2013)
Shared: Action Roguelike · Action · Difficult

Rogue Legacy 2
Shared: Action · Metroidvania · Adventure

Nuclear Throne
Shared: Action Roguelike · Difficult · Action

Cuphead
Shared: Difficult · Local Co-Op · 2D

Dungreed
Shared: Action Roguelike · Action · Roguelite

Spelunky
Shared: Action Roguelike · Difficult · Local Co-Op

Streets of Rogue
Shared: Action Roguelike · Roguelite · Action

Risk of Rain 2
Shared: Action Roguelike · Action · Roguelite

Salt and Sanctuary
Shared: Difficult · Metroidvania · 2D

Hollow Knight
Shared: Difficult · Metroidvania · 2D

Ravenswatch
Shared: Action Roguelike · Action · Difficult

Vagante
Shared: Action Roguelike · Difficult · Action

Broforce
Shared: Action · Local Co-Op · 2D

One Step From Eden
Shared: Action Roguelike · Difficult · Action

Hollow Knight: Silksong
Shared: Difficult · Metroidvania · 2D

Rogue Legacy
Shared: Action Roguelike · Action · 2D

Noita
Shared: Difficult · Action Roguelike · 2D