Games like Heart&Slash
Games like Heart&Slash include Hades, Skul: The Hero Slayer, Dead Cells, Hades II, and Megabonk. We matched them by the tags players give Heart&Slash on Steam (Hack and Slash, Action Roguelike, Action, Robots, and Adventure): closest matches first, and among equally close ones the better-known games.

Hades
Shared: Action Roguelike · Hack and Slash · Action

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

Dead Cells
Shared: Action Roguelike · Adventure · Roguelike

Hades II
Shared: Action · Hack and Slash · Action Roguelike

Megabonk
Shared: Action Roguelike · Roguelike · Indie

Moonlighter
Shared: Hack and Slash · Action Roguelike · Roguelike

Vampire Survivors
Shared: Action Roguelike · Indie · Roguelite

Ravenswatch
Shared: Action Roguelike · Action · Roguelike

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

Hero Siege
Shared: Hack and Slash · Action Roguelike · Roguelike

Children of Morta
Shared: Hack and Slash · Action Roguelike · Roguelike

Wizard of Legend
Shared: Action Roguelike · Action · Roguelike

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

Lost Castle
Shared: Action Roguelike · Hack and Slash · Beat 'em up

Halls of Torment
Shared: Action Roguelike · Action · Roguelike

Death Must Die
Shared: Action Roguelike · Hack and Slash · Action

Rogue Legacy
Shared: Action Roguelike · Action · Indie

Streets of Rogue
Shared: Action Roguelike · Action · Roguelike

Dungreed
Shared: Action Roguelike · Action · Roguelike

DmC: Devil May Cry
Shared: Hack and Slash · Action · Adventure

Enter the Gungeon
Shared: Action Roguelike · Roguelike · Indie

ICEY
Shared: Action · Hack and Slash · Adventure

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

Oblivion Override
Shared: Hack and Slash · Action Roguelike · Robots