Games like Hang Down
Games like Hang Down include Noita, Celeste, Hollow Knight: Silksong, Rain World, and Hollow Knight. We matched them by the tags players give Hang Down on Steam (Adventure, 2D, Difficult, Physics, and Cartoony): closest matches first, and among equally close ones the better-known games.

Noita
Shared: Physics · Difficult · Pixel Graphics

Celeste
Shared: Difficult · Pixel Graphics · 2D

Hollow Knight: Silksong
Shared: Difficult · 2D · Indie

Rain World
Shared: Difficult · 2D · Pixel Graphics

Hollow Knight
Shared: Difficult · 2D · Adventure

SANABI
Shared: Adventure · Pixel Graphics · 2D

Jump King
Shared: Difficult · Adventure · 2D

The Binding of Isaac: Rebirth
Shared: Difficult · Indie · Pixel Graphics

Hyper Light Drifter
Shared: Adventure · Pixel Graphics · Difficult

Titan Souls
Shared: Difficult · Adventure · Pixel Graphics

Skul: The Hero Slayer
Shared: 2D · Indie · Pixel Graphics

Terraria
Shared: 2D · Adventure · Pixel Graphics

Shovel Knight: Treasure Trove
Shared: 2D · Pixel Graphics · Adventure

The Escapists
Shared: 2D · Pixel Graphics · Difficult

Dead Cells
Shared: Adventure · 2D · Pixel Graphics

Blasphemous
Shared: 2D · Pixel Graphics · Difficult

BEEP
Shared: Adventure · 2D · Indie

To the Moon
Shared: Adventure · Pixel Graphics · Indie

Pizza Tower
Shared: Cartoony · Indie · Pixel Graphics

Changed
Shared: Difficult · Adventure · Pixel Graphics

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

Enter the Gungeon
Shared: Difficult · Pixel Graphics · Indie

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

Geometry Dash
Shared: Difficult · 2D · Singleplayer