Games like Comet Rogue
Games like Comet Rogue include The Binding of Isaac: Rebirth, Risk of Rain Returns, Vampire Survivors, Enter the Gungeon, and Skul: The Hero Slayer. We matched them by the tags players give Comet Rogue on Steam (Action Roguelike, PvE, Difficult, Roguelike, and Space): closest matches first, and among equally close ones the better-known games.

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

Risk of Rain Returns
Shared: Action Roguelike · PvE · 2D

Vampire Survivors
Shared: Action Roguelike · Pixel Graphics · Roguelike

Enter the Gungeon
Shared: Action Roguelike · Roguelike · Difficult

Skul: The Hero Slayer
Shared: Action Roguelike · Roguelike · Pixel Graphics

Dead Cells
Shared: Action Roguelike · Roguelike · Pixel Graphics

Noita
Shared: Roguelike · Difficult · Pixel Graphics

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

Spelunky
Shared: Action Roguelike · Roguelike · Difficult

Nuclear Throne
Shared: Action Roguelike · Roguelike · Difficult

FTL: Faster Than Light
Shared: Roguelike · Space · Difficult

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

BALL x PIT
Shared: Action Roguelike · Roguelike · Arcade

Dungreed
Shared: Action Roguelike · Roguelike · Pixel Graphics

Halls of Torment
Shared: Action Roguelike · Roguelike · Pixel Graphics

Deep Rock Galactic: Survivor
Shared: Action Roguelike · PvE · Arcade

Megabonk
Shared: Action Roguelike · Roguelike · Pixel Graphics

Vagante
Shared: Action Roguelike · Difficult · Roguelike

HELLDIVERS™ 2
Shared: PvE · Space · Action

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

Sephiria
Shared: Action Roguelike · Roguelike · Pixel Graphics

Dome Keeper
Shared: Roguelike · Pixel Graphics · Action

Wizard of Legend
Shared: Action Roguelike · Roguelike · Pixel Graphics

Wall World
Shared: Roguelike · Difficult · Pixel Graphics