Games like Build Survivors
Games like Build Survivors include Megabonk, Vampire Survivors, BALL x PIT, Halls of Torment, and Deep Rock Galactic: Survivor. We matched them by the tags players give Build Survivors on Steam (Action, Bullet Heaven, Action Roguelike, Roguelite, and Pixel Graphics): closest matches first, and among equally close ones the better-known games.

Megabonk
Shared: Bullet Heaven · Action Roguelike · Roguelite

Vampire Survivors
Shared: Action Roguelike · Roguelite · Pixel Graphics

BALL x PIT
Shared: Action · Roguelite · Action Roguelike

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

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

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

Soulstone Survivors
Shared: Bullet Heaven · Action Roguelike · Roguelite

Nova Drift
Shared: Roguelite · Action Roguelike · Arcade

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

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

Boneraiser Minions
Shared: Action Roguelike · Roguelite · Pixel Graphics

Yet Another Zombie Survivors
Shared: Bullet Heaven · Action Roguelike · Roguelite

UnderMine
Shared: Action Roguelike · Roguelite · Pixel Graphics

Hades
Shared: Action Roguelike · Roguelite · Action

The Spell Brigade
Shared: Bullet Heaven · Roguelite · Action Roguelike

20 Minutes Till Dawn
Shared: Action Roguelike · Roguelite · Pixel Graphics

Antivirus Survivors 2003 Professional
Shared: Bullet Heaven · Action Roguelike · Action

Dead Cells
Shared: Action Roguelike · Pixel Graphics · Roguelite

Atomicrops
Shared: Action · Action Roguelike · Pixel Graphics

Streets of Rogue
Shared: Action Roguelike · Roguelite · Pixel Graphics

Talented
Shared: Action Roguelike · Roguelite · Pixel Graphics

Dungreed
Shared: Action Roguelike · Action · Pixel Graphics

Brotato
Shared: Action Roguelike · Bullet Heaven · Roguelite

Sephiria
Shared: Action Roguelike · Roguelite · Action