Games like Oh No! Ninjas!
Games like Oh No! Ninjas! include WEBFISHING, Word Play, Scribble It!, Papa's Pizzeria Deluxe, and Youtubers Life. We matched them by the tags players give Oh No! Ninjas! on Steam (Typing, Spelling, Casual, Action, and Cartoon): closest matches first, and among equally close ones the better-known games.

WEBFISHING
Shared: Casual · Character Customization · Indie

Word Play
Shared: Casual · Spelling · Typing

Scribble It!
Shared: Typing · Casual · Spelling

Papa's Pizzeria Deluxe
Shared: Casual · Character Customization · Action

Youtubers Life
Shared: Casual · Character Customization · Singleplayer

Passpartout: The Starving Artist
Shared: Casual · Indie · Singleplayer

Papa's Freezeria Deluxe
Shared: Casual · Character Customization · Singleplayer

Words for Evil
Shared: Typing · Spelling · Casual

Kingdom Rush - Tower Defense
Shared: Casual · Singleplayer · Action

Chinatris
Shared: Casual · Spelling · Indie

Mark of the Ninja
Shared: Action · Indie · Ninja

Timberman
Shared: Casual · Action · Indie

A Dance of Fire and Ice
Shared: Indie · Singleplayer · Casual

Zuma's Revenge!
Shared: Casual · Action · Singleplayer

Bloons TD 6
Shared: Casual · Singleplayer · Family Friendly

FEMINAZI: The Triggering
Shared: Casual · Action · Indie

Vampire Survivors
Shared: Casual · Indie · Singleplayer

Gang Beasts
Shared: Action · Casual · Singleplayer

Geometry Dash
Shared: Singleplayer · Character Customization · Indie

SpongeBob SquarePants: Battle for Bikini Bottom - Rehydrated
Shared: Action · Casual · Cartoon

Pikuniku
Shared: Casual · Indie · Action

Cuphead
Shared: Cartoon · Indie · Action

Zup! S
Shared: Casual · Indie · Singleplayer

One Finger Death Punch
Shared: Action · Indie · Singleplayer