Games like Vectronom
Games like Vectronom include Geometry Dash, A Dance of Fire and Ice, Celeste, Spin Rhythm XD, and Only Climb: Better Together. We matched them by the tags players give Vectronom on Steam (Rhythm, Puzzle Platformer, Family Friendly, Casual, and Precision Platformer): closest matches first, and among equally close ones the better-known games.

Geometry Dash
Shared: Rhythm · Difficult · Precision Platformer

A Dance of Fire and Ice
Shared: Rhythm · Difficult · Arcade

Celeste
Shared: Precision Platformer · Difficult · Platformer

Spin Rhythm XD
Shared: Rhythm · Casual · Difficult

Only Climb: Better Together
Shared: Precision Platformer · Difficult · Platformer

Defy Gravity Extended
Shared: Puzzle Platformer · Platformer · Casual

BIT.TRIP Presents... Runner2: Future Legend of Rhythm Alien
Shared: Rhythm · Precision Platformer · Difficult

Super Hexagon
Shared: Difficult · Rhythm · Arcade

140
Shared: Rhythm · Platformer · Difficult

DJMAX RESPECT V
Shared: Rhythm · Casual · Difficult

Pikuniku
Shared: Casual · Indie · Family Friendly

Ultimate Chicken Horse
Shared: Platformer · PvP · Funny

Muse Dash
Shared: Rhythm · Casual · Difficult

Pogostuck: Rage With Your Friends
Shared: Precision Platformer · Difficult · Platformer

Intralism
Shared: Rhythm · Difficult · Casual

BARRIER X
Shared: Rhythm · Difficult · Arcade

EDGE
Shared: Puzzle Platformer · Platformer · Casual

Super Meat Boy
Shared: Precision Platformer · Difficult · Platformer

Music Racer
Shared: Rhythm · Casual · Indie

Toki Tori
Shared: Casual · Platformer · Family Friendly

Chained Together
Shared: Casual · Puzzle Platformer · Platformer

N++ (NPLUSPLUS)
Shared: Precision Platformer · Difficult · Puzzle Platformer

Downwell
Shared: Precision Platformer · Platformer · Difficult

LIMBO
Shared: Puzzle Platformer · Platformer · Indie