Games like Hamspater
Games like Hamspater include Vampire Survivors, Skul: The Hero Slayer, The Binding of Isaac: Rebirth, Megabonk, and Rogue Legacy. We matched them by the tags players give Hamspater on Steam (Action Roguelike, Action, Casual, 2D Platformer, and Roguelike): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · 2D · Pixel Graphics

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

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Roguelike · Pixel Graphics

Megabonk
Shared: Action Roguelike · Roguelike · Action

Rogue Legacy
Shared: Action Roguelike · Action · Roguelike

Dead Cells
Shared: Action Roguelike · Roguelike · 2D

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

Death Must Die
Shared: Action Roguelike · Action · Pixel Graphics

Dungreed
Shared: Action Roguelike · Action · Roguelike

Noita
Shared: Roguelike · Pixel Graphics · Action Roguelike

Enter the Gungeon
Shared: Action Roguelike · Roguelike · Pixel Graphics

Have a Nice Death
Shared: Action Roguelike · Action · 2D

Hades
Shared: Action Roguelike · Action · Roguelike

Downwell
Shared: Action Roguelike · Action · 2D Platformer

Nuclear Throne
Shared: Action Roguelike · Roguelike · Action

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

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

Boneraiser Minions
Shared: Action Roguelike · 2D · Pixel Graphics

Risk of Rain Returns
Shared: Action Roguelike · 2D · Action

Halls of Torment
Shared: Action Roguelike · Action · Roguelike

Vagante
Shared: Action Roguelike · Action · Choices Matter

Wizard of Legend
Shared: Action Roguelike · Roguelike · Action

Rocket Rats
Shared: Action Roguelike · Casual · Action

BALL x PIT
Shared: Action · Action Roguelike · Roguelike