Games like Data Survivor
Games like Data Survivor include Vampire Survivors, BALL x PIT, Halls of Torment, Megabonk, and Skul: The Hero Slayer. We matched them by the tags players give Data Survivor on Steam (Action, Arcade, Singleplayer, Top-Down, and 2D): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · 2D

BALL x PIT
Shared: Action · Arcade · Action Roguelike

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

Megabonk
Shared: Action Roguelike · Action · Singleplayer

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

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

Boneraiser Minions
Shared: Action Roguelike · 2D · Pixel Graphics

Windowkill
Shared: Action · Arcade · Action Roguelike

LUFTRAUSERS
Shared: Arcade · Action · Bullet Hell

Exit the Gungeon
Shared: Arcade · Action · Singleplayer

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

Rogue Legacy
Shared: Action · Singleplayer · Action Roguelike

Nuclear Throne
Shared: Action Roguelike · Action · Pixel Graphics

UnderMine
Shared: Action Roguelike · Action · Pixel Graphics

Hotline Miami
Shared: Action · Top-Down · Pixel Graphics

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

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

Timberman
Shared: Action · Pixel Graphics · Singleplayer

Planes, Bullets and Vodka
Shared: Action · Arcade · Singleplayer

Dungreed
Shared: Action · Action Roguelike · Pixel Graphics

Brotato
Shared: Singleplayer · Action Roguelike · Bullet Hell

Deep Rock Galactic: Survivor
Shared: Action Roguelike · Top-Down · Bullet Hell

Spellbook Demonslayers
Shared: Top-Down · Singleplayer · Pixel Graphics

Rocket Rats
Shared: Action Roguelike · Pixel Graphics · Action