Games like Ultra Space Battle Brawl
Games like Ultra Space Battle Brawl include Rivals of Aether, Lethal League Blaze, Lethal League, Stick Fight: The Game, and Duck Game. We matched them by the tags players give Ultra Space Battle Brawl on Steam (Sports, Action, Indie, 4 Player Local, and Pixel Graphics): closest matches first, and among equally close ones the better-known games.

Rivals of Aether
Shared: Indie · Pixel Graphics · Fighting

Lethal League Blaze
Shared: Action · Indie · Sports

Lethal League
Shared: Indie · Fighting · Action

Stick Fight: The Game
Shared: Action · Fighting · 4 Player Local

Duck Game
Shared: Action · Pixel Graphics · 4 Player Local

A Few Quick Matches
Shared: Indie · Action · 4 Player Local

Rivals of Aether II
Shared: Indie · Action · Fighting

TEKKEN 7
Shared: Action · Fighting · Competitive

Nidhogg
Shared: Pixel Graphics · Indie · Local Multiplayer

SpeedRunners
Shared: Indie · Action · Competitive

TowerFall Ascension
Shared: Indie · Action · Local Multiplayer

DRAGON BALL FighterZ
Shared: Action · Fighting · Competitive

Fraymakers
Shared: Indie · Action · Fighting

Mortal Kombat 11
Shared: Action · Fighting · Competitive

Skullgirls 2nd Encore
Shared: Indie · Fighting · 2D Fighter

Mortal Kombat X
Shared: Action · Fighting · Competitive

Rocket League®
Shared: Sports · Competitive · Action

ROUNDS
Shared: Action · Fighting · Local Multiplayer

Brawlhalla
Shared: Fighting · 2D Fighter · Action

Street Fighter™ 6
Shared: Action · Fighting · 2D Fighter

Broforce
Shared: Action · Pixel Graphics · Indie

Them's Fightin' Herds
Shared: Action · Indie · Fighting

Ultra Street Fighter® IV
Shared: Action · Fighting · Competitive

Crawl
Shared: Pixel Graphics · 4 Player Local · Indie