Games like Okhlos: Omega
Games like Okhlos: Omega include Hades, Vampire Survivors, Skul: The Hero Slayer, The Binding of Isaac: Rebirth, and Megabonk. We matched them by the tags players give Okhlos: Omega on Steam (Action Roguelike, Action, Indie, Comedy, and Mythology): closest matches first, and among equally close ones the better-known games.

Hades
Shared: Action Roguelike · Indie · Action

Vampire Survivors
Shared: Action Roguelike · Indie · Singleplayer

Skul: The Hero Slayer
Shared: Action · Action Roguelike · Indie

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Indie · Roguelike

Megabonk
Shared: Action Roguelike · Indie · Roguelike

Hades II
Shared: Action · Action Roguelike · Roguelike

The Binding of Isaac
Shared: Action Roguelike · Indie · Roguelike

Rogue Legacy
Shared: Action Roguelike · Indie · Action

Risk of Rain (2013)
Shared: Action Roguelike · Indie · Action

Dungreed
Shared: Action Roguelike · Action · Indie

Nuclear Throne
Shared: Action Roguelike · Indie · Action

Halls of Torment
Shared: Action Roguelike · Action · Roguelike

Enter the Gungeon
Shared: Action Roguelike · Indie · Roguelike

BALL x PIT
Shared: Action · Action Roguelike · Roguelike

Risk of Rain 2
Shared: Action Roguelike · Action · Roguelike

Dead Cells
Shared: Action Roguelike · Roguelike · Pixel Graphics

Everything is Crab: The Animal Evolution Roguelite
Shared: Action Roguelike · Action · Singleplayer

UnderMine
Shared: Action Roguelike · Indie · Action

Noobs Want to Live
Shared: Action · Action Roguelike · Roguelike

Ravenswatch
Shared: Action Roguelike · Action · Roguelike

Streets of Rogue
Shared: Action Roguelike · Action · Indie

Noita
Shared: Roguelike · Indie · Action Roguelike

Spelunky
Shared: Action Roguelike · Indie · Roguelike

Brotato
Shared: Action Roguelike · Singleplayer · Roguelike