Games like Berserker Onslaught
Games like Berserker Onslaught include Megabonk, Hades, Risk of Rain 2, Hades II, and Tower of Babel: Survivors of Chaos. We matched them by the tags players give Berserker Onslaught on Steam (Action, Action Roguelike, Loot, Survival, and Roguelite): closest matches first, and among equally close ones the better-known games.

Megabonk
Shared: Action Roguelike · Roguelite · Roguelike

Hades
Shared: Action Roguelike · Roguelite · Action

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

Hades II
Shared: Action · Roguelite · Action Roguelike

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

Brotato
Shared: Action Roguelike · Roguelike · Survival

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

Vampire Survivors
Shared: Action Roguelike · Roguelite · Action

Gunfire Reborn
Shared: Roguelite · Roguelike · Action

Soulstone Survivors
Shared: Action Roguelike · Roguelite · Roguelike

Death Must Die
Shared: Action Roguelike · Roguelite · Action

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

Streets of Rogue
Shared: Action Roguelike · Roguelite · Action

Dead Cells
Shared: Action Roguelike · Roguelike · Adventure

Halls of Torment
Shared: Action Roguelike · Roguelite · Action

Dungreed
Shared: Action Roguelike · Action · Roguelite

Ravenswatch
Shared: Action Roguelike · Action · Roguelike

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

Rogue Legacy
Shared: Action Roguelike · Action · Roguelike

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

Sephiria
Shared: Action Roguelike · Roguelite · Action

UnderMine
Shared: Action Roguelike · Roguelite · Action

Neon Abyss
Shared: Loot · Roguelike · Bullet Heaven

暖雪 Warm Snow
Shared: Action Roguelike · Roguelite · Roguelike