Games like Nowhere Patrol
Games like Nowhere Patrol include Cuphead, Skul: The Hero Slayer, Enter the Gungeon, Katana ZERO, and Celeste. We matched them by the tags players give Nowhere Patrol on Steam (Action, Indie, Bullet Hell, Difficult, and Boss Rush): closest matches first, and among equally close ones the better-known games.

Cuphead
Shared: Difficult · Platformer · Indie

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

Enter the Gungeon
Shared: Bullet Hell · Difficult · Indie

Katana ZERO
Shared: Action · Indie · Pixel Graphics

Celeste
Shared: Difficult · Indie · Pixel Graphics

Hollow Knight
Shared: Difficult · Indie · Platformer

Vampire Survivors
Shared: Bullet Hell · Indie · 2D

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

Super Meat Boy
Shared: Indie · Difficult · Platformer

Broforce
Shared: Action · 2D · Indie

Bit Blaster XL
Shared: Bullet Hell · Difficult · Action

Shovel Knight: Treasure Trove
Shared: Indie · Platformer · Action

LUFTRAUSERS
Shared: Indie · Bullet Hell · Action

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

SANABI
Shared: Action · Pixel Graphics · Indie

Nuclear Throne
Shared: Indie · Action · Difficult

Nine Sols
Shared: Difficult · Action · 2D

The Void Rains Upon Her Heart
Shared: Bullet Hell · Indie · Action

Titan Souls
Shared: Indie · Difficult · Action

Jump King
Shared: Indie · Difficult · Action

Star of Providence
Shared: Bullet Hell · Indie · Action

Blasphemous
Shared: Indie · 2D · Action

Rain World
Shared: Difficult · Indie · Platformer

ZeroRanger
Shared: Indie · Bullet Hell · Action