Games like Something Ate My Alien
Games like Something Ate My Alien include Hollow Knight, Öoo, ANIMAL WELL, Leap Year, and Hollow Knight: Silksong. We matched them by the tags players give Something Ate My Alien on Steam (Metroidvania, 2D Platformer, Puzzle Platformer, Exploration, and Platformer): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Metroidvania · Platformer · 2D

Öoo
Shared: Metroidvania · Puzzle Platformer · 2D Platformer

ANIMAL WELL
Shared: Metroidvania · Exploration · Puzzle Platformer

Leap Year
Shared: 2D Platformer · Exploration · Metroidvania

Hollow Knight: Silksong
Shared: Metroidvania · 2D · Platformer

Momodora: Reverie Under The Moonlight
Shared: Metroidvania · 2D Platformer · Exploration

Webbed
Shared: 2D Platformer · Puzzle Platformer · Exploration

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

LIMBO
Shared: Puzzle Platformer · Platformer · Puzzle

Defy Gravity Extended
Shared: Puzzle Platformer · Platformer · 2D

Braid
Shared: Puzzle Platformer · 2D Platformer · Platformer

Nine Sols
Shared: Metroidvania · Platformer · 2D

Thank Goodness You're Here!
Shared: Exploration · 2D Platformer · Hand-drawn

Rain World
Shared: Exploration · Platformer · 2D

Afterimage
Shared: Metroidvania · 2D Platformer · Exploration

SteamWorld Dig
Shared: Metroidvania · Platformer · Mining

Planet of Lana
Shared: Puzzle Platformer · 2D Platformer · Platformer

Teslagrad
Shared: Metroidvania · Platformer · 2D

FEZ
Shared: Platformer · Exploration · Puzzle

Wuppo: Definitive Edition
Shared: Metroidvania · Exploration · 2D Platformer

Axiom Verge
Shared: Metroidvania · Platformer · 2D

Dust: An Elysian Tail
Shared: Metroidvania · Platformer · 2D

Prince of Persia The Lost Crown
Shared: Metroidvania · 2D Platformer · Exploration

SteamWorld Dig 2
Shared: Metroidvania · Platformer · Mining