Games like Ground Zero Hero
Games like Ground Zero Hero include Vampire Survivors, Megabonk, Soulstone Survivors, Brotato, and Halls of Torment. We matched them by the tags players give Ground Zero Hero on Steam (Bullet Heaven, Action Roguelike, Roguelite, 2D, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Roguelite · 2D

Megabonk
Shared: Bullet Heaven · Action Roguelike · Roguelite

Soulstone Survivors
Shared: Bullet Heaven · Action Roguelike · Roguelite

Brotato
Shared: Action Roguelike · Singleplayer · Bullet Heaven

Halls of Torment
Shared: Action Roguelike · Roguelite · Roguelike

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

BALL x PIT
Shared: Roguelite · Action Roguelike · Action

Dead Cells
Shared: Action Roguelike · Roguelike · 2D

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

Deep Rock Galactic: Survivor
Shared: Action Roguelike · Bullet Heaven · Roguelite

Yet Another Zombie Survivors
Shared: Bullet Heaven · Action Roguelike · Roguelite

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

Hades
Shared: Action Roguelike · Roguelite · Roguelike

Nova Drift
Shared: Roguelite · Action Roguelike · Bullet Heaven

Boneraiser Minions
Shared: Action Roguelike · Roguelite · Bullet Heaven

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

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

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

Rogue Legacy
Shared: Action Roguelike · Roguelike · Singleplayer

Hades II
Shared: Roguelite · Action Roguelike · Roguelike

Sephiria
Shared: Action Roguelike · Roguelite · Roguelike

The Spell Brigade
Shared: Bullet Heaven · Roguelite · Action Roguelike

Karate Survivor
Shared: Bullet Heaven · Action Roguelike · Roguelite

Dome Keeper
Shared: Singleplayer · Roguelike · Action