Games like Mortal Fight: Lethal Revenge
Games like Mortal Fight: Lethal Revenge include Judgment, RWBY: Grimm Eclipse, Stellar Blade™, Lost Judgment, and Darksiders™. We matched them by the tags players give Mortal Fight: Lethal Revenge on Steam (Beat 'em up, Hack and Slash, 3D Fighter, Boxing, and Co-op Campaign): closest matches first, and among equally close ones the better-known games.

Judgment
Shared: Beat 'em up · 3D Fighter · Hack and Slash

RWBY: Grimm Eclipse
Shared: Hack and Slash · Beat 'em up · Action-Adventure

Stellar Blade™
Shared: Hack and Slash · Singleplayer · Action

Lost Judgment
Shared: Beat 'em up · 3D Fighter · Hack and Slash

Darksiders™
Shared: Hack and Slash · Singleplayer · Action

Bayonetta
Shared: Hack and Slash · Singleplayer · Action

Castle Crashers®
Shared: Beat 'em up · Hack and Slash · Singleplayer

Like a Dragon: Ishin!
Shared: Beat 'em up · Hack and Slash · Action

Darksiders III
Shared: Hack and Slash · Singleplayer · Action

STAR WARS™ - The Force Unleashed™ Ultimate Sith Edition
Shared: Hack and Slash · Singleplayer · Beat 'em up

DmC: Devil May Cry
Shared: Hack and Slash · Action · Singleplayer

Wolcen: Lords of Mayhem
Shared: Hack and Slash · Singleplayer · Action

ICEY
Shared: Hack and Slash · Action · Singleplayer

God of War Ragnarök
Shared: Hack and Slash · Action · Action-Adventure

Undisputed
Shared: Boxing · Controller · 3D Fighter

Alice: Madness Returns
Shared: Hack and Slash · 3D Platformer · Singleplayer

Trailmakers
Shared: Co-op Campaign · Singleplayer · Action

NARUTO SHIPPUDEN: Ultimate Ninja STORM 3 Full Burst HD
Shared: Beat 'em up · Controller · 3D Fighter

Hi-Fi RUSH
Shared: Hack and Slash · Singleplayer · Action

Teenage Mutant Ninja Turtles: Shredder's Revenge
Shared: Beat 'em up · Co-op Campaign · Action-Adventure

Bladed fury
Shared: Hack and Slash · Action · Female Protagonist

Dust: An Elysian Tail
Shared: Beat 'em up · Action · Singleplayer

NINJA GAIDEN 4
Shared: Hack and Slash · Action · Singleplayer

The Vagrant
Shared: Hack and Slash · Action · Beat 'em up