Games like Sleepy Sunday
Games like Sleepy Sunday include Hades, Skul: The Hero Slayer, Dead Cells, Hades II, and Lost Castle. We matched them by the tags players give Sleepy Sunday on Steam (Action Roguelike, Action, Beat 'em up, Hack and Slash, and 2D Platformer): closest matches first, and among equally close ones the better-known games.
Hades
Shared: Action Roguelike · Hack and Slash · Action
Skul: The Hero Slayer
Shared: Action · Action Roguelike · 2D
Dead Cells
Shared: Action Roguelike · Hack and Slash · 2D
Hades II
Shared: Action · Action Roguelike · Hack and Slash
Lost Castle
Shared: Action Roguelike · Beat 'em up · Hack and Slash
Anomaly Agent
Shared: Action Roguelike · 2D Platformer · Hack and Slash
Astral Ascent
Shared: Action Roguelike · Hack and Slash · Atmospheric
Katana ZERO
Shared: Action · 2D Platformer · Hack and Slash
Have a Nice Death
Shared: Action Roguelike · Hack and Slash · Action
SANABI
Shared: Action · 2D Platformer · Story Rich
Black Myth: Wukong
Shared: Action · Combat · Atmospheric
BlazBlue Entropy Effect
Shared: Action Roguelike · Action · 2D
Hollow Knight
Shared: Difficult · 2D · Atmospheric
The Binding of Isaac: Rebirth
Shared: Action Roguelike · Difficult · Indie
Blasphemous 2
Shared: Difficult · 2D Platformer · Combat
Ravenswatch
Shared: Action Roguelike · Action · Difficult
The Binding of Isaac
Shared: Action Roguelike · Action · Difficult
Nine Sols
Shared: Action · Difficult · 2D
Hyper Light Drifter
Shared: Action · Atmospheric · Hack and Slash
Risk of Rain (2013)
Shared: Action Roguelike · Action · Difficult
Noita
Shared: Difficult · Action Roguelike · Action
Spiritfall
Shared: Action Roguelike · 2D Platformer · Hack and Slash
God of War
Shared: Action · Hack and Slash · Story Rich
Going Under
Shared: Action Roguelike · Beat 'em up · Hack and Slash