Games like Blood Labs
Games like Blood Labs include The Binding of Isaac, The Binding of Isaac: Rebirth, BlazBlue Entropy Effect, Skul: The Hero Slayer, and Vampire Survivors. We matched them by the tags players give Blood Labs on Steam (Action, Action Roguelike, 2D, Dark, and Procedural Generation): closest matches first, and among equally close ones the better-known games.

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

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Dark · 2D

BlazBlue Entropy Effect
Shared: Action Roguelike · Action · 2D

Skul: The Hero Slayer
Shared: Action · Action Roguelike · 2D

Vampire Survivors
Shared: Action Roguelike · 2D · Singleplayer

Dead Cells
Shared: Action Roguelike · 2D · Action

Have a Nice Death
Shared: Action Roguelike · 2D · Action

Hades
Shared: Action Roguelike · Action · Singleplayer

Rogue Legacy
Shared: Action Roguelike · Action · 2D

UnderMine
Shared: Action Roguelike · Action · Singleplayer

Cult of the Lamb
Shared: Action Roguelike · Singleplayer · 2D

Spelunky
Shared: Action Roguelike · 2D · Procedural Generation

Dungreed
Shared: Action Roguelike · Action · 2D

Death Must Die
Shared: Action Roguelike · Action · 2D

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

Resident Evil 4
Shared: Action · Singleplayer · Dark

Halls of Torment
Shared: Action Roguelike · Action · 2D

BALL x PIT
Shared: Action · Action Roguelike · 2D

暖雪 Warm Snow
Shared: Action Roguelike · 2D · Action

Windowkill
Shared: Action · Action Roguelike · 2D

Risk of Rain (2013)
Shared: Action Roguelike · Action · 2D

Batman™: Arkham Knight
Shared: Action · Singleplayer · Dark

Deep Rock Galactic: Survivor
Shared: Action Roguelike · Action · Procedural Generation

Hades II
Shared: Action · Action Roguelike · Singleplayer