Games like Battle Squares
Games like Battle Squares include Brawlhalla, Stick Fight: The Game, ROUNDS, MARVEL Tōkon: Fighting Souls, and SpiderHeck. We matched them by the tags players give Battle Squares on Steam (Action, Twin Stick Shooter, 2D Platformer, Arena Shooter, and Parkour): closest matches first, and among equally close ones the better-known games.

Brawlhalla
Shared: 2D Platformer · Casual · Action

Stick Fight: The Game
Shared: Action · PvP · 2D Fighter

ROUNDS
Shared: Action · PvP · 2D Fighter

MARVEL Tōkon: Fighting Souls
Shared: Action · Casual · Arcade

SpiderHeck
Shared: PvP · Physics · Parkour

Street Fighter™ 6
Shared: Action · PvP · Arcade

GUILTY GEAR -STRIVE-
Shared: PvP · Action · 2D Fighter

DRAGON BALL FighterZ
Shared: Action · PvP · 2D Fighter

Gang Beasts
Shared: Action · Casual · Physics

Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad
Shared: Action · Arcade · Casual

Cyberhunt
Shared: Action · Twin Stick Shooter · Casual

GrandChase
Shared: Action · PvP · Casual

UFO 50
Shared: Action · Arcade · 2D

One Finger Death Punch
Shared: Action · 2D Fighter · Casual

FATAL FURY: City of the Wolves
Shared: Action · PvP · 2D Fighter

Windowkill
Shared: Action · Twin Stick Shooter · Arcade

Streets of Rage 4
Shared: Action · Arcade · 2D

JoJo's Bizarre Adventure: All-Star Battle R
Shared: Action · PvP · 2D Fighter

Strike Force Heroes
Shared: Action · Arena Shooter · 2D

Twin Shot Deluxe
Shared: Action · 2D Platformer · Casual

Your Only Move Is HUSTLE
Shared: Action · 2D Fighter · PvP

Apewar
Shared: Action · PvP · Arena Shooter

Overgrowth
Shared: Action · Parkour · Physics

DNF Duel
Shared: Action · PvP · 2D Fighter