Games like The Gate Must Stand
Games like The Gate Must Stand include Hades, Vampire Survivors, Halls of Torment, Megabonk, and Death Must Die. We matched them by the tags players give The Gate Must Stand on Steam (Action Roguelike, Hack and Slash, Bullet Hell, Real Time Tactics, and Tower Defense): closest matches first, and among equally close ones the better-known games.

Hades
Shared: Action Roguelike · Hack and Slash · Roguelite

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

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

Megabonk
Shared: Action Roguelike · Bullet Hell · Roguelite

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

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

Soulstone Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Hades II
Shared: Hack and Slash · Action Roguelike · Roguelite

Brotato
Shared: Action Roguelike · Bullet Hell · Roguelike

Monsters are Coming!
Shared: Action Roguelike · Bullet Hell · Tower Defense

Nuclear Throne
Shared: Action Roguelike · Bullet Hell · Roguelike

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

The King is Watching
Shared: Tower Defense · Roguelike · RTS

BALL x PIT
Shared: Bullet Hell · Action Roguelike · Roguelite

Tower of Babel: Survivors of Chaos
Shared: Action Roguelike · Bullet Hell · Roguelite

Necrosmith
Shared: Action Roguelike · Bullet Hell · Tower Defense

Tiny Rogues
Shared: Action Roguelike · Bullet Hell · Roguelite

Ravenswatch
Shared: Action Roguelike · Roguelike · Roguelite

The Binding of Isaac
Shared: Action Roguelike · Roguelike · Difficult

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Roguelike · Difficult

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

Bad North: Jotunn Edition
Shared: Real Time Tactics · Action Roguelike · Tower Defense

Dead Cells
Shared: Action Roguelike · Hack and Slash · Roguelike

Risk of Rain 2
Shared: Action Roguelike · Roguelite · Roguelike