Games like ZombWave
Games like ZombWave include Skul: The Hero Slayer, The Binding of Isaac: Rebirth, Vampire Survivors, Nuclear Throne, and Enter the Gungeon. We matched them by the tags players give ZombWave on Steam (Action, 2D, Top-Down, Arena Shooter, and Zombies): closest matches first, and among equally close ones the better-known games.

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

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

Vampire Survivors
Shared: 2D · Action Roguelike · Action

Nuclear Throne
Shared: Roguelike · Action · Action Roguelike

Enter the Gungeon
Shared: Roguelike · Action Roguelike · 2D

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

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

Hotline Miami
Shared: Action · Top-Down · Indie

Noita
Shared: Roguelike · 2D · Action

Rogue Legacy
Shared: Action · Roguelike · 2D

BALL x PIT
Shared: Action · Roguelike · Action Roguelike

Dead Cells
Shared: 2D · Roguelike · Action Roguelike

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

Dungreed
Shared: Action · Action Roguelike · Roguelike

Hotline Miami 2: Wrong Number
Shared: Action · Top-Down · Gore

Hades
Shared: Action · Action Roguelike · Roguelike

The Last Stand: Aftermath
Shared: Zombies · Action · Top-Down

Broforce
Shared: Action · 2D · Pixel Graphics

Halls of Torment
Shared: Action Roguelike · Action · Roguelike

Left 4 Dead 2
Shared: Zombies · Action · Shooter

Realm of the Mad God Exalt
Shared: Roguelike · Action Roguelike · Perma Death

Hero Siege
Shared: Action Roguelike · Top-Down · Action

暖雪 Warm Snow
Shared: 2D · Action Roguelike · Top-Down

Death Road to Canada
Shared: Zombies · Action · Action Roguelike