Games like Ronin's Requiem
Games like Ronin's Requiem include SANABI, The Messenger, Warhammer 40,000: Space Marine 2, F.I.S.T.: Forged In Shadow Torch, and NINJA GAIDEN: Ragebound. We matched them by the tags players give Ronin's Requiem on Steam (Adventure, Action, Action-Adventure, 2D Platformer, and 2D): closest matches first, and among equally close ones the better-known games.

SANABI
Shared: Action · Adventure · 2D Platformer

The Messenger
Shared: Retro · 2D · Action

Warhammer 40,000: Space Marine 2
Shared: Action · Adventure · Action-Adventure

F.I.S.T.: Forged In Shadow Torch
Shared: Action · Adventure · 2D Platformer

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

ANTONBLAST
Shared: Action · 2D Platformer · 2D

Rise of the Tomb Raider™
Shared: Adventure · Action · Action-Adventure

Tomb Raider Game of the Year
Shared: Adventure · Action · Action-Adventure

Ghost of Tsushima DIRECTOR'S CUT
Shared: Action · Adventure · Ninja

Sonic Origins
Shared: Action · Adventure · 2D Platformer

Sonic Superstars
Shared: Action · Adventure · 2D Platformer

Mark of the Ninja
Shared: Action · 2D · Ninja

Crimson Desert Enhanced
Shared: Action · Adventure · Action-Adventure

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

Castlevania Advance Collection
Shared: Action · 2D Platformer · Action-Adventure

Narita Boy
Shared: Action · Adventure · 2D

BlazBlue Entropy Effect
Shared: Action · Action-Adventure · 2D

STAR WARS Jedi: Survivor™
Shared: Action · Adventure · Action-Adventure

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

UFO 50
Shared: Action · 2D · Adventure

Super Bernie World
Shared: Action · Adventure · 2D Platformer

Shovel Knight: Treasure Trove
Shared: Adventure · Action · 2D

Exit the Gungeon
Shared: Action · Adventure · Indie

NINJA GAIDEN 4
Shared: Action · Adventure · Action-Adventure