Games like Probability 0
Games like Probability 0 include Skul: The Hero Slayer, Risk of Rain (2013), Rogue Legacy, The Binding of Isaac: Rebirth, and Vampire Survivors. We matched them by the tags players give Probability 0 on Steam (Indie, Action Roguelike, Action, Platformer, and Roguelike): closest matches first, and among equally close ones the better-known games.

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

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

Rogue Legacy
Shared: Indie · Platformer · Action Roguelike

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

Vampire Survivors
Shared: Action Roguelike · Indie · Pixel Graphics

Dungreed
Shared: Action Roguelike · Indie · Action

Megabonk
Shared: Action Roguelike · Indie · Roguelike

Hades
Shared: Action Roguelike · Indie · Action

Enter the Gungeon
Shared: Action Roguelike · Roguelike · Indie

Nuclear Throne
Shared: Action Roguelike · Indie · Roguelike

Dead Cells
Shared: Action Roguelike · Roguelike · Pixel Graphics

BlazBlue Entropy Effect
Shared: Action Roguelike · Action · Platformer

Spelunky
Shared: Action Roguelike · Indie · Platformer

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

Noita
Shared: Roguelike · Indie · Pixel Graphics

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

Streets of Rogue
Shared: Action Roguelike · Pixel Graphics · Indie

ScourgeBringer
Shared: Indie · Action · Action Roguelike

Magicite
Shared: Indie · Roguelike · Action Roguelike

Downwell
Shared: Action Roguelike · Indie · Pixel Graphics

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

Katana ZERO
Shared: Action · Pixel Graphics · Platformer

Hades II
Shared: Action · Roguelike · Action Roguelike

Hero Siege
Shared: Action Roguelike · Pixel Graphics · Indie