Games like Double Dragon IV
Games like Double Dragon IV include Streets of Rage 4, Sonic Mania, Broforce, Fight'N Rage, and METAL SLUG 3. We matched them by the tags players give Double Dragon IV on Steam (Action, Retro, Beat 'em up, Local Co-Op, and 2D): closest matches first, and among equally close ones the better-known games.

Streets of Rage 4
Shared: Action · Beat 'em up · 2D

Sonic Mania
Shared: Retro · 2D · Classic

Broforce
Shared: Action · Local Co-Op · 2D

Fight'N Rage
Shared: Action · Beat 'em up · 2D

METAL SLUG 3
Shared: Action · Retro · Classic

Shank
Shared: Action · Beat 'em up · 2D

METAL SLUG X
Shared: Action · Retro · 2D

Contra Anniversary Collection
Shared: Action · Retro · Side Scroller

Shovel Knight: Treasure Trove
Shared: Retro · Action · 2D

METAL SLUG
Shared: Action · 2D · Retro

Double Dragon Trilogy
Shared: Retro · Beat 'em up · Action

Double Dragon Gaiden: Rise Of The Dragons
Shared: Beat 'em up · Local Co-Op · Side Scroller

Kung Fury: Street Rage - Ultimate Edition
Shared: Beat 'em up · Action · Retro

River City Girls
Shared: Action · Beat 'em up · Local Co-Op

Mother Russia Bleeds
Shared: Beat 'em up · Action · Local Co-Op

Bloodstained: Curse of the Moon
Shared: Action · Retro · 2D

SANABI
Shared: Action · Pixel Graphics · 2D

Phantom Breaker: Battle Grounds Classic
Shared: Action · Beat 'em up · Local Co-Op

Huntdown
Shared: Action · Side Scroller · Local Co-Op

Hotline Miami 2: Wrong Number
Shared: Action · Retro · Pixel Graphics

Teenage Mutant Ninja Turtles: Shredder's Revenge
Shared: Beat 'em up · Side Scroller · 2D

Capcom Beat 'Em Up Bundle
Shared: Action · Beat 'em up · Retro

Hotline Miami
Shared: Action · Retro · Pixel Graphics

Shank 2
Shared: Action · Beat 'em up · Local Co-Op