Games like The Showdown: Gorilla vs 100
Games like The Showdown: Gorilla vs 100 include Hades, Megabonk, Hades II, Vampire Survivors, and Death Must Die. We matched them by the tags players give The Showdown: Gorilla vs 100 on Steam (Action, Casual, Action Roguelike, Hack and Slash, and Roguelite): closest matches first, and among equally close ones the better-known games.

Hades
Shared: Action Roguelike · Hack and Slash · Roguelite

Megabonk
Shared: Action Roguelike · Roguelite · Action

Hades II
Shared: Action · Hack and Slash · Roguelite

Vampire Survivors
Shared: Action Roguelike · Roguelite · Casual

Death Must Die
Shared: Action Roguelike · Roguelite · Action

Windblown
Shared: Action Roguelike · Hack and Slash · Roguelite

God of War
Shared: Action · Hack and Slash · Third Person

Shape of Dreams
Shared: Action Roguelike · Hack and Slash · Action

Jotunnslayer: Hordes of Hel
Shared: Action Roguelike · Hack and Slash · Roguelite

Stellar Blade™
Shared: Action · Hack and Slash · Third Person

Soulstone Survivors
Shared: Action Roguelike · Roguelite · Action

Skul: The Hero Slayer
Shared: Action · Action Roguelike · Roguelite

Risk of Rain 2
Shared: Action Roguelike · Action · Roguelite

Black Myth: Wukong
Shared: Action · Combat · 3D

Devil May Cry 5
Shared: Action · Hack and Slash · Third Person

Have a Nice Death
Shared: Action Roguelike · Hack and Slash · Action

WARRIORS: Abyss
Shared: Action · Action Roguelike · Hack and Slash

20 Minutes Till Dawn
Shared: Action Roguelike · Roguelite · Casual

Cinderia
Shared: Action Roguelike · Hack and Slash · Action

Halls of Torment
Shared: Action Roguelike · Roguelite · Action

Touhou Dystopian
Shared: Action · Action Roguelike · Roguelite

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

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

Project Lazarus
Shared: Action · Action Roguelike · Casual