Games like Slime Rush : Leshy and the Magic Book
Games like Slime Rush : Leshy and the Magic Book include Enter the Gungeon, Army of Ruin, Megabonk, Nuclear Throne, and Brotato. We matched them by the tags players give Slime Rush : Leshy and the Magic Book on Steam (Action Roguelike, 3D Platformer, Bullet Hell, Top-Down Shooter, and Twin Stick Shooter): closest matches first, and among equally close ones the better-known games.

Enter the Gungeon
Shared: Action Roguelike · Bullet Hell · Roguelike

Army of Ruin
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter

Megabonk
Shared: Action Roguelike · Bullet Hell · Roguelike

Nuclear Throne
Shared: Action Roguelike · Bullet Hell · Roguelike

Brotato
Shared: Action Roguelike · Bullet Hell · Roguelike

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelike

Hades
Shared: Action Roguelike · Hack and Slash · Roguelike

Deep Rock Galactic: Survivor
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter

SYNTHETIK: Legion Rising
Shared: Top-Down Shooter · Action Roguelike · Twin Stick Shooter

Death Must Die
Shared: Action Roguelike · Bullet Hell · Hack and Slash

Crab Champions
Shared: Action Roguelike · Bullet Hell · Roguelike

Halls of Torment
Shared: Action Roguelike · Bullet Hell · Roguelike

Relic Hunters Zero: Remix
Shared: Action Roguelike · Twin Stick Shooter · Top-Down Shooter

Soulstone Survivors
Shared: Action Roguelike · Bullet Hell · Hack and Slash

SYNTHETIK 2
Shared: Action Roguelike · Top-Down Shooter · Twin Stick Shooter

ANVIL
Shared: Action Roguelike · Top-Down Shooter · Twin Stick Shooter

Voidigo
Shared: Action Roguelike · Twin Stick Shooter · Bullet Hell

Blazing Beaks
Shared: Action Roguelike · Top-Down Shooter · Roguelike

Rogue: Genesia
Shared: Action Roguelike · Bullet Hell · Twin Stick Shooter

Shape of Dreams
Shared: Action Roguelike · Hack and Slash · PvE

Slime 3K: Rise Against Despot
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter

BALL x PIT
Shared: Bullet Hell · Action Roguelike · Top-Down Shooter

Galactic Glitch
Shared: Action Roguelike · Twin Stick Shooter · Top-Down Shooter

SNAKE FARM
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter