Games like Roots Need Control 3.0
Games like Roots Need Control 3.0 include Broforce, METAL SLUG, Streets of Rage 4, METAL SLUG 3, and Huntdown. We matched them by the tags players give Roots Need Control 3.0 on Steam (Side Scroller, Action, Shooter, Arcade, and 2D): closest matches first, and among equally close ones the better-known games.

Broforce
Shared: Action · 2D · Pixel Graphics

METAL SLUG
Shared: Action · Side Scroller · Arcade

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

METAL SLUG 3
Shared: Action · Arcade · Side Scroller

Huntdown
Shared: Side Scroller · Shooter · Action

METAL SLUG X
Shared: Action · Arcade · 2D

Terraria
Shared: 2D · Survival · Pixel Graphics

Blazing Chrome
Shared: Action · Side Scroller · Pixel Graphics

Duck Game
Shared: Action · 2D · Pixel Graphics

Dead Pixels
Shared: Action · Indie · Pixel Graphics

PUBG: BATTLEGROUNDS
Shared: Shooter · Survival · Action

METAL SLUG 2
Shared: Action · Side Scroller · Arcade

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

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

UFO 50
Shared: Action · Indie · Pixel Graphics

Vampire Survivors
Shared: 2D · Pixel Graphics · Indie

Door Kickers: Action Squad
Shared: Action · Pixel Graphics · Shooter

Left 4 Dead 2
Shared: Shooter · Action · Co-op

Skul: The Hero Slayer
Shared: Action · Indie · 2D

Guns, Gore & Cannoli
Shared: Side Scroller · Action · 2D

Guns, Gore and Cannoli 2
Shared: Side Scroller · Action · 2D

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

Sonic Mania
Shared: 2D · Pixel Graphics · Action

Cuphead
Shared: 2D · Co-op · Indie