Games like Friday Night Knockout
Games like Friday Night Knockout include Broforce, Shovel Knight: Treasure Trove, Your Only Move Is HUSTLE, Rivals of Aether, and Streets of Rage 4. We matched them by the tags players give Friday Night Knockout on Steam (Action, 2D Fighter, Arcade, Side Scroller, and 2D): closest matches first, and among equally close ones the better-known games.

Broforce
Shared: Action · Pixel Graphics · 2D

Shovel Knight: Treasure Trove
Shared: Pixel Graphics · Action · 2D

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

Rivals of Aether
Shared: 2D Fighter · Pixel Graphics · 2D

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

METAL SLUG
Shared: Action · Arcade · Side Scroller

UFO 50
Shared: Action · Pixel Graphics · Arcade

Kung Fury: Street Rage - Ultimate Edition
Shared: Arcade · Action · Side Scroller

Bloodstained: Curse of the Moon
Shared: Action · Pixel Graphics · 2D

Huntdown
Shared: Action · Side Scroller · Pixel Graphics

Skul: The Hero Slayer
Shared: Action · Pixel Graphics · 2D

METAL SLUG 3
Shared: Action · Arcade · Side Scroller

METAL SLUG X
Shared: Action · Arcade · 2D

Teenage Mutant Ninja Turtles: Shredder's Revenge
Shared: Side Scroller · Pixel Graphics · 2D

Vampire Survivors
Shared: Pixel Graphics · 2D · Action

Blazing Chrome
Shared: Action · Side Scroller · Pixel Graphics

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

Warhammer 40,000: Boltgun
Shared: Action · Pixel Graphics · Retro

TowerFall Ascension
Shared: 2D Fighter · Action · Pixel Graphics

THE KING OF FIGHTERS 2002 UNLIMITED MATCH
Shared: Action · 2D Fighter · Arcade

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

SANABI
Shared: Action · Pixel Graphics · 2D

Bud Spencer & Terence Hill - Slaps And Beans
Shared: Action · Arcade · Pixel Graphics

Sonic Mania
Shared: 2D · Pixel Graphics · Action

