Games like Spellslinger
Games like Spellslinger include Vampire Survivors, Skul: The Hero Slayer, The Binding of Isaac: Rebirth, Dead Cells, and Wizard of Legend. We matched them by the tags players give Spellslinger on Steam (Action Roguelike, Action, Casual, 2D Platformer, and Pixel Graphics): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Pixel Graphics · Casual

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

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

Dead Cells
Shared: Action Roguelike · Pixel Graphics · Roguelike

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

Seraph's Last Stand
Shared: Action Roguelike · Casual · Pixel Graphics

Rogue Legacy
Shared: Action Roguelike · Action · Roguelike

Megabonk
Shared: Action Roguelike · Action · Roguelike

Death Must Die
Shared: Action Roguelike · Pixel Graphics · Action

Dungreed
Shared: Action Roguelike · Action · Pixel Graphics

Sephiria
Shared: Action Roguelike · Action · Pixel Graphics

Have a Nice Death
Shared: Action Roguelike · Action · 2D Platformer

Rocket Rats
Shared: Action Roguelike · Casual · Pixel Graphics

Downwell
Shared: Action Roguelike · Pixel Graphics · Action

SANABI
Shared: Action · Pixel Graphics · 2D Platformer

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

Risk of Rain (2013)
Shared: Action Roguelike · Action · Pixel Graphics

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

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

Noobs Want to Live
Shared: Action · Action Roguelike · Pixel Graphics

Hades
Shared: Action Roguelike · Action · Singleplayer

Noita
Shared: Pixel Graphics · Roguelike · Action Roguelike

Desktop Survivors 98
Shared: Action Roguelike · Action · Casual

Boneraiser Minions
Shared: Action Roguelike · Pixel Graphics · Casual