Games like Mirth Melody
Games like Mirth Melody include Muse Dash, Slime Rancher, Melatonin, A Dance of Fire and Ice, and Slime Rancher 2. We matched them by the tags players give Mirth Melody on Steam (Music, Rhythm, Cute, Relaxing, and Colorful): closest matches first, and among equally close ones the better-known games.

Muse Dash
Shared: Music · Rhythm · Cute

Slime Rancher
Shared: Cute · Exploration · Colorful

Melatonin
Shared: Rhythm · Cute · Music

A Dance of Fire and Ice
Shared: Music · Rhythm · Colorful

Slime Rancher 2
Shared: Cute · Relaxing · Colorful

DJMAX RESPECT V
Shared: Music · Rhythm · Cute

AudioSurf
Shared: Music · Rhythm · Colorful

Sayonara Wild Hearts
Shared: Rhythm · Music · Action

A Short Hike
Shared: Relaxing · Cute · Exploration

Geometry Dash
Shared: Music · Rhythm · Colorful

Trombone Champ
Shared: Rhythm · Music · Cute

Rhythm Doctor
Shared: Music · Rhythm · Action

Carto
Shared: Cute · Relaxing · Exploration

Spin Rhythm XD
Shared: Music · Rhythm · Casual

ABZU
Shared: Relaxing · Exploration · Colorful

My Little Puppy
Shared: Cute · Colorful · Adventure

Incredibox
Shared: Rhythm · Music · Casual

EZ2ON REBOOT : R
Shared: Rhythm · Music · Action

Music Racer
Shared: Music · Rhythm · Colorful

Here Comes Niko!
Shared: Cute · Relaxing · Colorful

Touhou Danmaku Kagura Phantasia Lost
Shared: Music · Rhythm · Cute

Hatsune Miku: Project DIVA Mega Mix+
Shared: Rhythm · Cute · Music

Hi-Fi RUSH
Shared: Rhythm · Music · Action

Florence
Shared: Cute · Casual · Music