Games like Sheep Quest
Games like Sheep Quest include Hollow Knight, Hollow Knight: Silksong, Nine Sols, Celeste, and Rain World. We matched them by the tags players give Sheep Quest on Steam (Platformer, Difficult, Souls-like, Action, and Surreal): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Platformer · Souls-like · Difficult

Hollow Knight: Silksong
Shared: Difficult · Souls-like · Platformer

Nine Sols
Shared: Difficult · Souls-like · Platformer

Celeste
Shared: Difficult · Platformer · 2D Platformer

Rain World
Shared: Difficult · Platformer · Exploration

Geometry Dash
Shared: Difficult · Platformer · Singleplayer

Getting Over It with Bennett Foddy
Shared: Difficult · Platformer · Singleplayer

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

MIO: Memories in Orbit
Shared: Platformer · Difficult · Exploration

GRIME
Shared: Platformer · Souls-like · Difficult

Super Meat Boy
Shared: Platformer · Difficult · 2D Platformer

Lies of P
Shared: Souls-like · Action · Singleplayer

SANABI
Shared: Action · 2D Platformer · Platformer

Pizza Tower
Shared: Platformer · 2D Platformer · Action

Blasphemous
Shared: Souls-like · Difficult · Platformer

DARK SOULS™ III
Shared: Souls-like · Difficult · Exploration

STAR WARS Jedi: Survivor™
Shared: Action · Souls-like · Singleplayer

Momodora: Reverie Under The Moonlight
Shared: Souls-like · 2D Platformer · Difficult

Peaks of Yore
Shared: Difficult · Platformer · Physics

Cuphead
Shared: Difficult · Platformer · Action

Salt and Sanctuary
Shared: Souls-like · Difficult · Platformer

Blasphemous 2
Shared: Difficult · Souls-like · Platformer

Black Myth: Wukong
Shared: Souls-like · Action · Singleplayer

A Difficult Game About Climbing
Shared: Difficult · Platformer · Action