Games like Fatal Theory

"Final Exam" is a 2.5D side-scrolling action game featuring four friends who find themselves in a monster-infested ghost town. Play alone or with up to 4 players online and 2 in local play, surviving hordes of creatures and achieving varied objectives in non-linear levels. Gain experience, find new weapons, and unlock powerful moves to reach higher scores and compete with friends.

"Sacred 3 is an arcade Hack 'n' Slash game for up to four players, set in the war for Ancaria. Choose from legendary heroes, each with unique skills and weapons, and fight together against evil forces. Level up, customize your hero, and perform powerful co-op combat arts to defeat epic bosses and dominate the battlefield."

Embark on a dead funny adventure with the Zombie Vikings. A putrid posse sent on a mission through the most epic of worlds to retrieve Odin’s lost eye. Play as the most fearsome Vikings ever raised from Norse soil: Gunborg, Seagurd, Hedgy and Caw-kaa. Hack through the gingerbread swamps of Molgaga! Cruise through the intestines of the Midgaard Serpent! Fight giant poultry!

River City Girls is a 2-player anime hack and slash game, where players control the girlfriends of Kunio and Riki, who have been captured. The goal is to fight through the mean streets of River City, using combos, throws, and weapons to defeat enemies and rescue the boys. The game features manga story panels, anime cutscenes, and a synth-pop soundtrack, making for an old-school beat-'em-up experience in a new generation. Both single-player and local co-op options are available.

In Undead Horde , become a necromancer and raise an army of up to 100 undead creatures, including humans and giant scorpions, to battle the living. Gather an array of weapons, trinkets, and magical items, and command your horde to conquer a fantasy world. With various merchants to sell and trade loot and the ability to unlock new minion types, level up and create the necromancer of your nightmares.

"Chenso Club" is a beat 'em up game with vibrant pixel art set in a post-apocalyptic world. Players control powerful mutants, battling enemies and bosses with unique abilities. The game features local co-op, customizable loadouts, and a variety of stages with branching paths.

"Rampage Knights" is a cooperative beat 'em up game with randomized dungeon crawling, where you can play alone or with a friend online. Fight your way through a labyrinth of monsters and traps in a ruined castle to face its sinister master. Your hero gains new abilities and powers as you progress, with frenetic action inspired by Golden Axe and Binding of Isaac.

Sharpen your axe, string your bow, brew your potions! Ancaria needs heroes like you. Grab your friends to join the resistance! The once peaceful land of Ancaria is in grave danger. The evil Ashen empire has enslaved its population and is using the orc-like Grimmoc to wipe out the Seraphim, who swore to protect it. In order to defeat the empire you will have to prove yourself as a warrior by rid…

In "Fist Puncher," lead a group of eccentric fighters on a mission to save the world from a criminal mastermind. This side-scrolling beat-em-up game features retro-style graphics, over-the-top characters, and a variety of attacks and combos. Battle your way through levels filled with humor, pop culture references, and plenty of action.

"Castle Crashers" is a frantic 2D arcade-style game, now with uncapped framerate and ultra texture mode. Up to four players can battle through hordes of enemies in single-player or multiplayer, with over 25 characters, 40 weapons, and adorable animal orbs to unlock. Arena mode and Insane Mode provide additional challenges and replayability.