Games like Sword vs Horde
Games like Sword vs Horde include Vampire Survivors, Halls of Torment, Death Must Die, Hades, and BALL x PIT. We matched them by the tags players give Sword vs Horde on Steam (Hack and Slash, Action Roguelike, Bullet Hell, Roguelite, and Perma Death): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

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

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

Hades
Shared: Action Roguelike · Hack and Slash · Roguelite

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

Megabonk
Shared: Action Roguelike · Roguelite · Bullet Hell

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

Deep Rock Galactic: Survivor
Shared: Action Roguelike · Roguelite · Bullet Hell

Soulstone Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Rogue: Genesia
Shared: Action Roguelike · Bullet Hell · Roguelite

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

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

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

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

Windowkill
Shared: Action Roguelike · Bullet Hell · Arcade

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Roguelite

Nuclear Throne
Shared: Action Roguelike · Bullet Hell · Roguelite

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

Slime 3K: Rise Against Despot
Shared: Action Roguelike · Bullet Hell · Roguelite

Brotato
Shared: Bullet Hell · Action Roguelike · Roguelite

Windblown
Shared: Hack and Slash · Action Roguelike · Roguelite

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

Nova Drift
Shared: Bullet Hell · Roguelite · Action Roguelike

Monsters are Coming!
Shared: Roguelite · Bullet Hell · Action Roguelike