Games like Dash'n'Drops
Games like Dash'n'Drops include Skul: The Hero Slayer, Hades, Rogue Legacy, Hades II, and Risk of Rain (2013). We matched them by the tags players give Dash'n'Drops on Steam (Action, Action Roguelike, Beat 'em up, Hand-drawn, and Platformer): closest matches first, and among equally close ones the better-known games.

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

Hades
Shared: Action Roguelike · Action · Roguelite

Rogue Legacy
Shared: Action Roguelike · Action · Platformer

Hades II
Shared: Action · Action Roguelike · Roguelike

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

Vampire Survivors
Shared: Action Roguelike · Roguelite · Action

Dungreed
Shared: Action Roguelike · Action · Roguelike

Dead Cells
Shared: Action Roguelike · Roguelike · Roguelite

Lost Castle
Shared: Action Roguelike · Beat 'em up · Roguelite

20XX
Shared: Action Roguelike · Action · Platformer

Anomaly Agent
Shared: Action Roguelike · Platformer · 2D Platformer

Caveblazers
Shared: Action Roguelike · Platformer · Roguelike

Megabonk
Shared: Action Roguelike · Roguelike · Action

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

30XX
Shared: Action Roguelike · Platformer · Roguelite

暖雪 Warm Snow
Shared: Action Roguelike · Roguelite · Roguelike

Neon Echo
Shared: Action Roguelike · Action · Platformer

Stick It to the Stickman
Shared: Action · Beat 'em up · Roguelike

Spelunky
Shared: Action Roguelike · Platformer · Roguelike

Rogue Legacy 2
Shared: Action · Platformer · Roguelite

Blade Assault
Shared: Action · Roguelike · Platformer

Absolum
Shared: Beat 'em up · Action · Hand-drawn

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

BALL x PIT
Shared: Action · Action Roguelike · Roguelite