Games like Alchemist Arena
Games like Alchemist Arena include Katana ZERO, Skul: The Hero Slayer, Blasphemous 2, SANABI, and Rogue Legacy 2. We matched them by the tags players give Alchemist Arena on Steam (Action, 2D Fighter, Arcade, 2D Platformer, and Hack and Slash): closest matches first, and among equally close ones the better-known games.

Katana ZERO
Shared: Action · Pixel Graphics · 2D Platformer

Skul: The Hero Slayer
Shared: Action · 2D · Pixel Graphics

Blasphemous 2
Shared: Metroidvania · 2D Platformer · Fantasy

SANABI
Shared: Action · 2D Platformer · Pixel Graphics

Rogue Legacy 2
Shared: Arcade · Action · Metroidvania

SHINOBI: Art of Vengeance
Shared: Action · 2D Platformer · Metroidvania

Dust: An Elysian Tail
Shared: Action · Metroidvania · 2D

Dead Cells
Shared: Metroidvania · 2D · Hack and Slash

The Messenger
Shared: Metroidvania · Action · 2D

UFO 50
Shared: Action · Arcade · Pixel Graphics

The Mageseeker: A League of Legends Story™
Shared: Hack and Slash · 2D · Pixel Graphics

Exit the Gungeon
Shared: Action · Arcade · 2D

BlazBlue Entropy Effect
Shared: Action · 2D · Pixel Graphics

Your Only Move Is HUSTLE
Shared: 2D Fighter · Action · 2D

Vampire Survivors
Shared: 2D · Pixel Graphics · Action

Rogue Legacy
Shared: Action · 2D · Metroidvania

Rivals of Aether
Shared: 2D Fighter · Pixel Graphics · Action

One Finger Death Punch
Shared: Action · 2D Fighter · Indie

Blasphemous
Shared: Metroidvania · Action · Pixel Graphics

MARVEL Tōkon: Fighting Souls
Shared: Action · 2D Fighter · Arcade

Bloodstained: Curse of the Moon
Shared: Action · Pixel Graphics · Metroidvania

GUILTY GEAR -STRIVE-
Shared: 2D Fighter · Arcade · Action

Have a Nice Death
Shared: Hack and Slash · Action · 2D

Street Fighter™ 6
Shared: 2D Fighter · Arcade · Action