Games like Pixel Party Program
Games like Pixel Party Program include Brawlhalla, Webbed, Party Animals, Pizza Tower, and Broforce. We matched them by the tags players give Pixel Party Program on Steam (2D Platformer, Battle Royale, Platformer, Action, and Casual): closest matches first, and among equally close ones the better-known games.

Brawlhalla
Shared: 2D Platformer · Casual · Platformer

Webbed
Shared: 2D Platformer · Cute · Platformer

Party Animals
Shared: Casual · PvP · Party Game

Pizza Tower
Shared: 2D Platformer · Platformer · Action

Broforce
Shared: Action · Platformer · 2D

Draw & Guess
Shared: Casual · Party Game · PvP

BattleBlock Theater®
Shared: Platformer · 2D Platformer · 2D

Katana ZERO
Shared: Action · 2D Platformer · Platformer

Super Meat Boy
Shared: Platformer · 2D Platformer · 2D

Pikuniku
Shared: Casual · Action · Cute

Ultimate Chicken Horse
Shared: Platformer · PvP · Party Game

Sonic Origins
Shared: 2D Platformer · Action · Platformer

Gang Beasts
Shared: Action · Casual · PvP

Duck Game
Shared: Action · Platformer · 2D

Celeste
Shared: 2D Platformer · Platformer · 2D

Sonic Superstars
Shared: 2D Platformer · Platformer · Action

SANABI
Shared: 2D Platformer · Action · Platformer

Spelunky 2
Shared: 2D Platformer · Platformer · PvP

Move or Die
Shared: Action · 2D · Platformer

KarmaZoo
Shared: 2D Platformer · Action · Platformer

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

Stick Fight: The Game
Shared: Action · PvP · Funny

Grapple Dog
Shared: 2D Platformer · Platformer · Action

20XX
Shared: 2D Platformer · Platformer · Action