Games like Boredom Survivors
Games like Boredom Survivors include Vampire Survivors, Megabonk, Halls of Torment, Death Must Die, and BALL x PIT. We matched them by the tags players give Boredom Survivors on Steam (Casual, Action, Action Roguelike, Roguelike, and Survival): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Megabonk
Shared: Action Roguelike · Roguelike · Roguelite

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

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

BALL x PIT
Shared: Action · Roguelike · Action Roguelike

20 Minutes Till Dawn
Shared: Action Roguelike · Survival · Bullet Hell

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

Noobs Want to Live
Shared: Action · Roguelike · Bullet Hell

Rocket Rats
Shared: Action Roguelike · Casual · Bullet Hell

Dead Cells
Shared: Roguelike · Action Roguelike · Roguelite

Brotato
Shared: Roguelike · Action Roguelike · Bullet Hell

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

Nuclear Throne
Shared: Action Roguelike · Roguelike · Action

Seraph's Last Stand
Shared: Casual · Action Roguelike · Bullet Hell

Atomicrops
Shared: Action · Roguelike · Action Roguelike

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Roguelite

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Roguelike · Pixel Graphics

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

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

Hades
Shared: Action Roguelike · Action · Roguelite

Dungreed
Shared: Action Roguelike · Roguelike · Action

暖雪 Warm Snow
Shared: Action Roguelike · Roguelike · Roguelite

Hades II
Shared: Action · Roguelike · Action Roguelike

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