Games like Gatestriders
Games like Gatestriders include Vampire Survivors, BALL x PIT, 20 Minutes Till Dawn, Dead Cells, and Megabonk. We matched them by the tags players give Gatestriders on Steam (Casual, Action, Female Protagonist, Adventure, and Shoot 'Em Up): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Casual

BALL x PIT
Shared: Action · Roguelike · Roguelite

20 Minutes Till Dawn
Shared: Action Roguelike · Shoot 'Em Up · Bullet Hell

Dead Cells
Shared: Adventure · Roguelike · Action Roguelike

Megabonk
Shared: Roguelike · Action Roguelike · Action

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

Death Must Die
Shared: Action Roguelike · Action · Bullet Hell

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

Hades II
Shared: Action · Roguelike · Female Protagonist

Nuclear Throne
Shared: Roguelike · Action Roguelike · Action

Noobs Want to Live
Shared: Action · Roguelike · Casual

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

ScourgeBringer
Shared: Action · Adventure · Roguelike

Asgard's Fall — Viking Survivors
Shared: Casual · Action Roguelike · Bullet Hell

Star of Providence
Shared: Shoot 'Em Up · Action · Action Roguelike

Rocket Rats
Shared: Casual · Action Roguelike · Action

Realm of the Mad God Exalt
Shared: Roguelike · Bullet Hell · Action Roguelike

Dungreed
Shared: Action · Action Roguelike · Roguelike

Hades
Shared: Action · Action Roguelike · Roguelite

Juicy Realm
Shared: Action · Adventure · Casual

I Am Legion: Stand Survivors
Shared: Action Roguelike · Shoot 'Em Up · Bullet Hell

The Void Rains Upon Her Heart
Shared: Action · Shoot 'Em Up · Action Roguelike

Apocalypse Party
Shared: Casual · Action Roguelike · Shoot 'Em Up

Cyberhunt
Shared: Action · Casual · Adventure