Games like Trials of Dash
Games like Trials of Dash include Downwell, Brawlhalla, Twin Shot Deluxe, Super Meat Boy, and ALTF4. We matched them by the tags players give Trials of Dash on Steam (Action, Casual, Arcade, Platformer, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

Downwell
Shared: Precision Platformer · Platformer · Arcade

Brawlhalla
Shared: Casual · 2D Platformer · Platformer

Twin Shot Deluxe
Shared: Action · Casual · Arcade

Super Meat Boy
Shared: Platformer · Precision Platformer · 2D Platformer

ALTF4
Shared: Action · Runner · Arcade

Rogue Legacy 2
Shared: Arcade · Action · Platformer

Celeste
Shared: Precision Platformer · Platformer · 2D Platformer

Pizza Tower
Shared: 2D Platformer · Platformer · Action

Sonic Origins
Shared: Action · 2D Platformer · Platformer

Planet of Lana
Shared: Action · 2D Platformer · Platformer

Haste
Shared: Action · Runner · Arcade

Oozi: Earth Adventure
Shared: Platformer · 2D Platformer · Casual

Hextech Mayhem: A League of Legends Story™
Shared: Action · Runner · Platformer

Super Fancy Pants Adventure
Shared: Action · Casual · Platformer

KarmaZoo
Shared: Action · Casual · Platformer

Katana ZERO
Shared: Action · Platformer · 2D Platformer

Boson X
Shared: Action · Arcade · Runner

Mirror's Edge™ Catalyst
Shared: Action · Runner · Platformer

Sonic Superstars
Shared: Action · Platformer · Casual

VVVVVV
Shared: Platformer · Precision Platformer · 2D Platformer

Shio
Shared: Action · Casual · Platformer

VHOLUME
Shared: Casual · Platformer · Arcade

MARVEL Tōkon: Fighting Souls
Shared: Action · Casual · Arcade

Super Meat Boy Forever
Shared: Action · Platformer · Precision Platformer