Games like S+ Universe
Games like S+ Universe include Geometry Dash, A Dance of Fire and Ice, Hatsune Miku: Project DIVA Mega Mix+, NEEDY STREAMER OVERLOAD, and Muse Dash. We matched them by the tags players give S+ Universe on Steam (Visual Novel, Anime, Arcade, Action, and 2D): closest matches first, and among equally close ones the better-known games.

Geometry Dash
Shared: Level Editor · 2D · Character Customization

A Dance of Fire and Ice
Shared: Level Editor · Arcade · 2D

Hatsune Miku: Project DIVA Mega Mix+
Shared: Anime · Arcade · Action

NEEDY STREAMER OVERLOAD
Shared: Anime · Visual Novel · Cute

Muse Dash
Shared: Anime · Cute · 2D

MULLET MADJACK
Shared: Arcade · Action · Anime

SUPER CHICKEN JUMPER
Shared: Arcade · 2D · Anime

The NOexistenceN of you AND me
Shared: Visual Novel · Anime · Cute

Super Hexagon
Shared: Arcade · Indie · Action

DJMAX RESPECT V
Shared: Anime · Action · Arcade

Rhythm Doctor
Shared: Level Editor · Indie · Action

Fox Hime Zero
Shared: Visual Novel · Anime · Indie

NEKOPARA Vol. 0
Shared: Anime · Visual Novel · Cute

NEKOPARA Extra
Shared: Anime · Visual Novel · Cute

Doki Doki Literature Club Plus!
Shared: Visual Novel · Anime · Cute

BlazBlue: Chronophantasma Extend
Shared: Anime · Visual Novel · Action

DRAGON BALL FighterZ
Shared: Anime · Action · Arcade

BlazBlue Centralfiction
Shared: Anime · Visual Novel · Action

Lucy -The Eternity She Wished For-
Shared: Visual Novel · Anime · Cute

NEKOPARA Vol. 2
Shared: Anime · Visual Novel · Cute

Persona 4 Arena Ultimax
Shared: Anime · Action · Visual Novel

Vampire Survivors
Shared: 2D · Indie · Arcade

Melty Blood Actress Again Current Code
Shared: Anime · Action · Arcade

ICEY
Shared: Anime · Action · Indie