Games like Utomah
Games like Utomah include Well Dweller, SANABI, Anomaly Agent, Mina the Hollower, and Blasphemous 2. We matched them by the tags players give Utomah on Steam (Side Scroller, 2D Platformer, Platformer, Action-Adventure, and 2D): closest matches first, and among equally close ones the better-known games.

Well Dweller
Shared: Action-Adventure · Horror · Action

SANABI
Shared: 2D Platformer · Action · 2D

Anomaly Agent
Shared: Side Scroller · 2D Platformer · Platformer

Mina the Hollower
Shared: Action-Adventure · 2D Platformer · Platformer

Blasphemous 2
Shared: 2D Platformer · Side Scroller · Platformer

Knock-knock
Shared: Side Scroller · 2D Platformer · Horror

Sonic Superstars
Shared: 2D Platformer · Platformer · Action

LIMBO
Shared: Platformer · 2D · Horror

SHINOBI: Art of Vengeance
Shared: 2D Platformer · Platformer · Action

Nocturnal
Shared: Side Scroller · Action-Adventure · 2D Platformer

Prince of Persia The Lost Crown
Shared: 2D Platformer · Side Scroller · Action

Castlevania: Belmont's Curse
Shared: 2D Platformer · Platformer · Action

Trine 5: A Clockwork Conspiracy
Shared: Platformer · Action · Action-Adventure

Thomas Was Alone
Shared: Side Scroller · Platformer · 2D Platformer

Trine 2: Complete Story
Shared: Platformer · 2D Platformer · Action-Adventure

Missing Banban
Shared: Side Scroller · 2D Platformer · Platformer

Hollow Knight
Shared: Platformer · 2D · Action

BlazBlue Entropy Effect
Shared: 2D · Action-Adventure · Platformer

Pizza Tower
Shared: 2D Platformer · Platformer · Cartoony

Gal Guardians: Demon Purge
Shared: 2D Platformer · Side Scroller · Platformer

Eastern Exorcist
Shared: Side Scroller · Action · 2D

ANTONBLAST
Shared: 2D Platformer · 2D · Action

Sonic Mania
Shared: Platformer · 2D · Side Scroller

Bō: Path of the Teal Lotus
Shared: Side Scroller · 2D Platformer · Platformer