Games like Purrvivors
Games like Purrvivors include Megabonk, Enter the Gungeon, Death Must Die, Brotato, and Vampire Survivors. We matched them by the tags players give Purrvivors on Steam (Action Roguelike, Bullet Heaven, Bullet Hell, Hack and Slash, and Dungeon Crawler): closest matches first, and among equally close ones the better-known games.

Megabonk
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

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

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

Brotato
Shared: Action Roguelike · Bullet Hell · Bullet Heaven

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelike

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

Hades
Shared: Action Roguelike · Hack and Slash · Roguelike

Soulstone Survivors
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

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

Pathogenic
Shared: Bullet Hell · Bullet Heaven · Action Roguelike

Cult of the Lamb
Shared: Action Roguelike · Dungeon Crawler · Cute

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Roguelike · Dungeon Crawler

Nordic Ashes: Survivors of Ragnarok
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

Noita
Shared: Roguelike · Dungeon Crawler · Action Roguelike

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

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

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

Wizard of Legend
Shared: Action Roguelike · Dungeon Crawler · Roguelike

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

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Bullet Heaven

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

Cursorblade
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

Moonlighter
Shared: Hack and Slash · Action Roguelike · Dungeon Crawler

Desktop Survivors 98
Shared: Action Roguelike · Bullet Hell · Dungeon Crawler