Games like DouDas Danger
Games like DouDas Danger include Rain World, Hollow Knight, Hollow Knight: Silksong, SUPER CHICKEN JUMPER, and Shovel Knight: Treasure Trove. We matched them by the tags players give DouDas Danger on Steam (Exploration, Creature Collector, Difficult, Platformer, and Arcade): closest matches first, and among equally close ones the better-known games.

Rain World
Shared: Difficult · Exploration · Platformer

Hollow Knight
Shared: Platformer · Difficult · Exploration

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

SUPER CHICKEN JUMPER
Shared: Difficult · Arcade · 2D

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

Celeste
Shared: Difficult · Platformer · Pixel Graphics

Geometry Dash
Shared: Difficult · 2D · Platformer

Slime Rancher
Shared: Exploration · Cute · Funny

Cave Story+
Shared: Exploration · Difficult · Platformer

Super Meat Boy
Shared: Difficult · Platformer · 2D

Terraria
Shared: 2D · Exploration · Pixel Graphics

Airscape - The Fall of Gravity
Shared: Exploration · Difficult · Platformer

Webbed
Shared: Exploration · Cute · Platformer

Jump King
Shared: Difficult · Platformer · 2D

Monster Sanctuary
Shared: Creature Collector · Exploration · Pixel Graphics

Pizza Tower
Shared: Platformer · Funny · Pixel Graphics

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

A Dance of Fire and Ice
Shared: Difficult · 2D · Arcade

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

Momodora: Reverie Under The Moonlight
Shared: Exploration · Difficult · Pixel Graphics

Broforce
Shared: Platformer · 2D · Pixel Graphics

VVVVVV
Shared: Platformer · Difficult · Pixel Graphics

Cat Goes Fishing
Shared: 2D · Exploration · Cute

Cuphead
Shared: Difficult · Platformer · 2D