Games like Castle Crashers

"BattleBlock Theater" is a quirky platformer game where you play as a prisoner forced to perform in a theater run by cats. Your goal is to rescue your friends by fighting through hundreds of levels filled with puzzles and battles. The game features co-op gameplay, both online and local, as well as arenas with various game modes for up to four players. You can also create and share your own levels with the level editor.

"Borderlands 2" is a action-packed shooter and loot game, where players can choose from four character classes and play cooperatively with up to two players. The game features an engaging story with humorous elements, set in a world filled with a variety of enemies and loot. With procedurally generated weapons, shields and grenades, there's always something new to discover. However, be prepared for some bugs and a lot of grinding.

"Dungeon Defenders" is a Historical Role Playing game that combines Tower Defense and Action-RPG elements, where up to 4 players can cooperatively save the land of Etheria from an Ancient Evil, either online or in local split-screen. Customize your character, forge equipment, and collect loot while fighting off enemies and plan strategies with friends. Additionally, PvP Deathmatch is available for competitive play.

"Double Dragon Neon" is a comedy hack and slash game that offers both single-player and multi-player options, with a focus on co-op play. Battle your way through hordes of enemies and bosses with stunning gameplay, excellent graphics, and good music. Despite some bugs, the intriguing story, humor, and replayability make it a worthy addition to the classic beat 'em up series.

"The Adventure Pals" is a lighthearted platformer game with cartoonish graphics and combat. Explore five diverse worlds while leveling up and improving your abilities. Complete quests, find collectibles, and engage in both platforming and combat-focused levels for a fun-filled journey.

Rayman Origins is a 2D side-scrolling platformer, returning to the series' roots with high-definition graphics and four-player co-op. When the Glade of Dreams is overrun by evil Darktoons, the Fairy Council calls on Rayman and his friends to restore peace and save their home. With humorous gameplay and a variety of levels, Rayman Origins offers a fun and challenging experience for players. Note: Online features will no longer be available from 2024-01-25.

In "Charlie Murder," players control the titular punk rock band as they battle through a world possessed by evil. Fight hordes of enemies, customize characters with tattoos and equipment, and engage in musical duels in this side-scrolling brawler. The game features a single-player campaign and multiplayer options for up to four players. Cooperate with friends to uncover the mystery behind Charlie's fate and save the world from darkness.

In "Cuphead," a run-and-gun indie game, players control Cuphead, a cup-headed character, fighting through various levels and bosses in a classic 1930s cartoon style. This adaptation is a research project, aiming to create a playable version for the retro PSP console, using Game Maker 8. The latest version, Alpha 0.8.2, is available for testing, featuring numerous fixes since the initial release of Alpha 0.6. Note that this is not an official adaptation, and purchasing the original game supports the official developers.

"Not Enough Madness" is an unofficial mod for MADNESS: Project Nexus that unlocks Madness mode from the start, adds a cheats menu, and allows for real-time character alterations. The mod is still being updated and support can be found on the Steam guide's comments section. Please note that the mod is not available for purchase, but can be downloaded from the provided Google Drive link.

Phantom Breaker: Battle Grounds is a 2D beat 'em up game by Mages/5pb, featuring classic beat 'em up gameplay with a fighting game twist. Fight against the minions of the evil wizard Phantom in Story Mode, across 8 stages inspired by famous Tokyo districts. Challenge yourself in Arcade Mode, or team up with friends in Multiplayer for a fun and exciting experience.