Games like Omega
Games like Omega include Celeste, Jump King, Hollow Knight, A Story About My Uncle, and A Difficult Game About Climbing. We matched them by the tags players give Omega on Steam (Adventure, Difficult, Precision Platformer, 3D Platformer, and Platformer): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Difficult · Precision Platformer · Platformer

Jump King
Shared: Difficult · Precision Platformer · Adventure

Hollow Knight
Shared: Difficult · Platformer · Adventure

A Story About My Uncle
Shared: Adventure · Parkour · Platformer

A Difficult Game About Climbing
Shared: Difficult · Adventure · Precision Platformer

Only Climb: Better Together
Shared: Precision Platformer · Difficult · 3D Platformer

Geometry Dash
Shared: Difficult · Precision Platformer · Platformer

Get To Work
Shared: Adventure · Difficult · Precision Platformer

Hollow Knight: Silksong
Shared: Difficult · Indie · Platformer

Chained Together
Shared: Adventure · Platformer · 3D Platformer

Pogostuck: Rage With Your Friends
Shared: Difficult · Precision Platformer · Adventure

Getting Over It with Bennett Foddy
Shared: Difficult · Platformer · Indie

Super Meat Boy
Shared: Precision Platformer · Difficult · Platformer

The End Is Nigh
Shared: Precision Platformer · Difficult · Platformer

Psychonauts 2
Shared: 3D Platformer · Adventure · Platformer

LIMBO
Shared: Platformer · Indie · Adventure

Neon White
Shared: 3D Platformer · Platformer · Parkour

Psychonauts
Shared: Adventure · Platformer · 3D Platformer

Hot Lava
Shared: Precision Platformer · 3D Platformer · Parkour

Crash Bandicoot™ N. Sane Trilogy
Shared: 3D Platformer · Difficult · Platformer

BETON BRUTAL
Shared: 3D Platformer · Precision Platformer · Parkour

Pseudoregalia
Shared: 3D Platformer · Platformer · Parkour

Pumpkin Jack
Shared: Adventure · 3D Platformer · Indie

VVVVVV
Shared: Precision Platformer · Platformer · Difficult