Games like The Big One
Games like The Big One include Dead Cells, The Binding of Isaac: Rebirth, Skul: The Hero Slayer, Dungreed, and Vampire Survivors. We matched them by the tags players give The Big One on Steam (Action Roguelike, Platformer, Roguelike, Dungeon Crawler, and Pixel Graphics): closest matches first, and among equally close ones the better-known games.

Dead Cells
Shared: Roguelike · Action Roguelike · Pixel Graphics

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Roguelike · Pixel Graphics

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

Dungreed
Shared: Action Roguelike · Roguelike · Pixel Graphics

Vampire Survivors
Shared: Action Roguelike · Pixel Graphics · Roguelite

Rogue Legacy
Shared: Platformer · Roguelike · Action Roguelike

Hades
Shared: Action Roguelike · Roguelike · Roguelite

Neon Abyss
Shared: Platformer · Roguelike · Procedural Generation

Enter the Gungeon
Shared: Action Roguelike · Roguelike · Pixel Graphics

UnderMine
Shared: Action Roguelike · Dungeon Crawler · Pixel Graphics

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

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

The Binding of Isaac
Shared: Action Roguelike · Roguelike · Procedural Generation

Moonlighter
Shared: Pixel Graphics · Action Roguelike · Dungeon Crawler

Noita
Shared: Roguelike · Pixel Graphics · Dungeon Crawler

ScourgeBringer
Shared: Action Roguelike · Pixel Graphics · Roguelike

Megabonk
Shared: Action Roguelike · Roguelike · Roguelite

Caveblazers
Shared: Action Roguelike · Platformer · Roguelike

Hades II
Shared: Roguelike · Action Roguelike · Action

Spelunky
Shared: Platformer · Action Roguelike · Roguelike

BlazBlue Entropy Effect
Shared: Action Roguelike · Platformer · Pixel Graphics

Downwell
Shared: Action Roguelike · Platformer · Pixel Graphics

Heroes of Hammerwatch II
Shared: Action Roguelike · Dungeon Crawler · Roguelike

Children of Morta
Shared: Roguelike · Action Roguelike · Pixel Graphics

