Games like Echo Loop
Games like Echo Loop include Planet of Lana, SANABI, Braid, Katana ZERO, and Timberman. We matched them by the tags players give Echo Loop on Steam (Casual, Action, 2D Platformer, 2D, and Atmospheric): closest matches first, and among equally close ones the better-known games.

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

SANABI
Shared: Action · 2D Platformer · 2D

Braid
Shared: 2D Platformer · 2D · Indie

Katana ZERO
Shared: Action · 2D Platformer · 2D

Timberman
Shared: Casual · Action · 2D

Vampire Survivors
Shared: 2D · Casual · Indie

A Dance of Fire and Ice
Shared: 2D · Indie · Singleplayer

Pizza Tower
Shared: 2D Platformer · Indie · Action

Hollow Knight
Shared: 2D · Indie · Atmospheric

Superflight
Shared: Casual · Indie · Action

Russian Life Simulator
Shared: 2D · Action · Singleplayer

Sonic Superstars
Shared: Action · 2D Platformer · Casual

SUPERHOT
Shared: Action · Time Manipulation · Indie

Sparkle 2 Evo
Shared: Casual · Action · Indie

Skul: The Hero Slayer
Shared: Action · Indie · 2D

Celeste
Shared: 2D Platformer · Indie · 2D

Hollow Knight: Silksong
Shared: 2D · Indie · Singleplayer

One Finger Death Punch
Shared: Action · Indie · 2D

Zup! S
Shared: Casual · 2D · Indie

ANTONBLAST
Shared: 2D Platformer · Action · 2D

SAMOLIOTIK
Shared: Casual · Action · Indie

Gorogoa
Shared: Casual · Indie · Atmospheric

Momoka (wo) Wasshoi
Shared: Casual · Action · 2D Platformer

Gensokyo Night Festival
Shared: Action · Casual · Indie