Games like Relic Recoil
Games like Relic Recoil include Hades II, Hades, ICEY, BlazBlue Entropy Effect, and Vampire Survivors. We matched them by the tags players give Relic Recoil on Steam (Action Roguelike, Female Protagonist, Gun Customization, Action, and Cute): closest matches first, and among equally close ones the better-known games.

Hades II
Shared: Action · Action Roguelike · Female Protagonist

Hades
Shared: Action Roguelike · Action · Hack and Slash

ICEY
Shared: Female Protagonist · Action · Hack and Slash

BlazBlue Entropy Effect
Shared: Action Roguelike · Action · 2D

Vampire Survivors
Shared: Action Roguelike · Casual · 2D

Skul: The Hero Slayer
Shared: Action Roguelike · Action · 2D

Cult of the Lamb
Shared: Action Roguelike · Cute · Character Customization

Devil Slayer - Raksasi
Shared: Action Roguelike · Female Protagonist · Action

Muse Dash
Shared: Female Protagonist · Cute · Casual

Akane
Shared: Action · Female Protagonist · Cyberpunk

Cinderia
Shared: Action Roguelike · Action · Hack and Slash

Bright Memory: Infinite
Shared: Female Protagonist · Action · Hack and Slash

Hero Siege
Shared: Action Roguelike · Hack and Slash · Action

Gensokyo Night Festival
Shared: Action · Female Protagonist · Casual

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

暖雪 Warm Snow
Shared: Action Roguelike · Top-Down · 2D

The Binding of Isaac
Shared: Action Roguelike · Action · Top-Down

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

Bladed fury
Shared: Female Protagonist · Action · Hack and Slash

Tower Hunter: Erza's Trial
Shared: Action Roguelike · Female Protagonist · Action

Rustil: Eternal Labyrinth Castle
Shared: Action Roguelike · Action · Female Protagonist

Touhou Dystopian
Shared: Action Roguelike · Female Protagonist · Action

The Vagrant
Shared: Female Protagonist · Action · 2D

Have a Nice Death
Shared: Action Roguelike · Action · Hack and Slash