Games like HopSquash!
Games like HopSquash! include Brawlhalla, Duck Game, Rivals of Aether, Broforce, and Stick Fight: The Game. We matched them by the tags players give HopSquash! on Steam (Local Multiplayer, Family Friendly, 2D Platformer, Pixel Graphics, and Retro): closest matches first, and among equally close ones the better-known games.

Brawlhalla
Shared: Local Multiplayer · 2D Platformer · Controller

Duck Game
Shared: Local Multiplayer · Pixel Graphics · Action

Rivals of Aether
Shared: Local Multiplayer · Pixel Graphics · Multiplayer

Broforce
Shared: Pixel Graphics · Action · Local Multiplayer

Stick Fight: The Game
Shared: Local Multiplayer · PvP · Action

TowerFall Ascension
Shared: Local Multiplayer · Pixel Graphics · Action

Overcooked! 2
Shared: Local Multiplayer · Family Friendly · Multiplayer

SpeedRunners
Shared: Local Multiplayer · Multiplayer · Action

UFO 50
Shared: Pixel Graphics · Retro · Action

TEKKEN 7
Shared: Local Multiplayer · Controller · Action

Move or Die
Shared: Local Multiplayer · Action · Multiplayer

Sonic Mania
Shared: Retro · Pixel Graphics · Family Friendly

DRAGON BALL FighterZ
Shared: Local Multiplayer · Controller · Action

Gang Beasts
Shared: Local Multiplayer · Action · Multiplayer

Sonic & SEGA All-Stars Racing
Shared: Local Multiplayer · Family Friendly · Controller

Ultimate Chicken Horse
Shared: Local Multiplayer · PvP · Multiplayer

Rivals of Aether II
Shared: Local Multiplayer · Action · Multiplayer

TEKKEN 8
Shared: Local Multiplayer · PvP · Action

Sonic Origins
Shared: 2D Platformer · Action · Pixel Graphics

PAC-MAN 256
Shared: Local Multiplayer · Action · Retro

Super Meat Boy
Shared: 2D Platformer · Pixel Graphics · Controller

Streets of Rage 4
Shared: Local Multiplayer · Action · Arcade

Webbed
Shared: 2D Platformer · Pixel Graphics · Family Friendly

ROUNDS
Shared: Local Multiplayer · PvP · Action