Games like Ninja Ruins
Games like Ninja Ruins include SANABI, Skul: The Hero Slayer, Katana ZERO, Celeste, and Owlboy. We matched them by the tags players give Ninja Ruins on Steam (Action, Adventure, Action-Adventure, Platformer, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

SANABI
Shared: Action · Pixel Graphics · Adventure

Skul: The Hero Slayer
Shared: Action · Indie · Pixel Graphics

Katana ZERO
Shared: Action · Pixel Graphics · Platformer

Celeste
Shared: Pixel Graphics · Platformer · 2D Platformer

Owlboy
Shared: Adventure · Pixel Graphics · Platformer

The Messenger
Shared: Platformer · Pixel Graphics · Action

Shovel Knight: Treasure Trove
Shared: Platformer · Pixel Graphics · Adventure

Himno
Shared: Platformer · Adventure · Pixel Graphics

BlazBlue Entropy Effect
Shared: Action · Action-Adventure · Platformer

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

Dust: An Elysian Tail
Shared: Action · Platformer · Adventure

Pizza Tower
Shared: 2D Platformer · Platformer · Indie

NINJA GAIDEN: Ragebound
Shared: Action · Platformer · 2D Platformer

Phoenotopia: Awakening
Shared: Action · Adventure · Platformer

Mina the Hollower
Shared: Action-Adventure · Pixel Graphics · 2D Platformer

Super Meat Boy
Shared: Platformer · 2D Platformer · Pixel Graphics

Trine 5: A Clockwork Conspiracy
Shared: Action · Adventure · Platformer

Blasphemous 2
Shared: Adventure · Fantasy · Pixel Graphics

Crimson Desert Enhanced
Shared: Action · Adventure · Singleplayer

Mark of the Ninja
Shared: Platformer · Action · Adventure

F.I.S.T.: Forged In Shadow Torch
Shared: Action · Platformer · Adventure

Sonic Origins
Shared: Action · Adventure · 2D Platformer

Sonic Superstars
Shared: Action · Adventure · Platformer

Olija
Shared: Action · Adventure · Action-Adventure