Mods / Replayability

• HHarder Zone Bossesby ChaonMakes Death Metal, King Conga, Coral Riff, Deep Blues, and Fortissimole more challenging. Configurable.25.5k downloadsupdated 11 mo ago
• TTasty's Additionsby 0TastyPie0Welcome to Tasty's Additions, a content mod which adds new items, playable characters and more! Currently the mod has 50+ new items to discover, 3 new playable characters, 6 new weapon types, 2 new weapon materials (that's a total of 120+ weapons) an23.9k downloadsupdated 1 mo ago
• HHarder Zones (1-4)by ChaonAdds new features to enemies to increase the difficulty. Configurable. Requires Harder Zone 5 for Zone 5 changes.20.5k downloadsupdated 11 mo ago
• HHarder Zone 5by ChaonMakes Zone 5 more difficult. Requires Harder Zones (1-4) for changes to the previous 4 zones.19.4k downloadsupdated 11 mo ago
• TTatters' Dungeon Packby TattersTheBatAn experimental item pack that adds a bunch of new items to the game to shake things up.16.2k downloadsupdated 23 mo ago
• TThe Binding of Isaac Item Packby ChaonAdds items, shrines, beggars, and shopkeepers from The Binding of Isaac.12.9k downloadsupdated 11 mo ago
• SSymphony of Sorceryby Ayre223The Symphony of Sorcery fan expansion for Crypt of the Necrodancer adds a whole new zone to the game! With it comes 70 new foes and members of the Court of Chaos, as well as a meeting with the leader of the Court for those that can manage to venture12.5k downloadsupdated 17 mo ago
• TThe Binding of Isaac Boss Packby ChaonAdds bosses from the Binding of Isaac to the pool of zone bosses. Currently contains Loki, Rainmaker, and Clutch. (Requires Binding of Isaac Boss Music mod for their boss themes)10.6k downloadsupdated 11 mo ago
• HHarder Necrodancerby ChaonMakes both Necrodance fights more challenging. Harder Zone Bosses is required for Necrodancer 2 changes.10.5k downloadsupdated 12 mo ago
• AAyre's Pack of Stuffby Ayre223Adds a new item slot "amulet" with 11 items, 4 weapon materials, 4 weapon shapes, 3 unique weapons, 6 spells, 2 shields, 1 boots, 7 headgear, 1 shovel, 1 charm, 2 armors, 1 familiar, 1 pack, 1 torch & 2 rings! With Symphony of Sorcery loaded, also ad10.0k downloadsupdated 2 y ago
• UUndead Decorby TattersTheBatFurnishes the crypt with tables, chairs, rusty cages, and more! Also spices up the lobby.9.8k downloadsupdated 17 mo ago
• HHarder Dead Ringerby ChaonMakes Dead Ringer more challenging with a new phase 2. Configurable.8.9k downloadsupdated 17 mo ago
• HHarder Conductorby ChaonAdds a third phase to the Conductor boss fight.8.3k downloadsupdated 23 mo ago
• HHarder Golden Luteby ChaonMakes the Golden Lute more challenging. Intended to be coupled with my "Choose your Final Boss" mod , rather than fought as Aria. The Golden Lute is now balanced around Cadence and will no longer be an anticlimax when fought as a non-Aria player. Con7.2k downloadsupdated 23 mo ago
• RRandomise Zonesby ChaonRandomise the order of zones AND tweak the enemy spawns to retain a proper difficulty curve that is balanced and thematic to each zone.7.1k downloadsupdated 11 mo ago
• CChoose Your Final Bossby ChaonPause Menu->Customize->Custom Rules->Mod Options->Choose Your Final Boss. Enjoy!6.6k downloadsupdated 12 mo ago
• SSundew's Character Packby sun_dewAdds seven new characters to play as: Vanguard, Morenda, Aureus, Chuck, Lyric, Siren, and Burnett.6.5k downloadsupdated 11 mo ago
• CChaon's Item Packby ChaonNew items! New health types! Visual effects for Stun and Fear status effects!5.2k downloadsupdated 11 mo ago
• MMore Modesby TattersTheBatAdds additional extra modes to mix and match as you see fit.4.0k downloadsupdated 11 mo ago
• KKeys and Locksby ChaonShops and chests and half your crates will now be locked. You will need to find keys to open them, but you're unlikely to find enought to open everything. Highly configurable.3.8k downloadsupdated 11 mo ago
• KKirby All-Starsby TattersTheBatAdds Kirby, Meta Knight, King Dedede, and Bandana Dee from the Kirby series as playable characters!3.1k downloadsupdated 3 y ago
• CCrescendoby dumbenbygooseAdds a new playable character: Crescendo! Instead of health, Crescendo has a battery that's constantly draining. Attack enemies to recharge it! Attacking multiple times in succession will build up momentum, allowing you to **** more damage and gain m2.5k downloadsupdated 2 y ago
• TThe Binding of Isaac Character Packby ChaonAdds characters from the Binding of Isaac.1.9k downloadsupdated 13 mo ago
• CCoda Flavorsby WarzeA whole new world of Coda with a hint of Aria and Bolt. Adds 48 new Characters with wacky gameplay twists and challenges. In collaboration with Sebseb2222. Banner by Avtraxi.1.9k downloadsupdated 2 y ago
• RRecycled Contentby TattersTheBatThis mod aims to re-implement content that has been scrapped or removed from the game throughout its history. It includes reworked formerly-editor-only items, polished unused enemies, and more!1.8k downloadsupdated 2 y ago
• AAllies of the Cryptby 0TastyPie0This is "Allies of the Crypt", a mod that adds new content based around a new item type: "Allies"! These items can summon creatures to fight for you! There are more items available too, that can improve your allies in various ways. In addition to ite1.7k downloadsupdated 17 mo ago
• MMore Foesby 0TastyPie0Welcome to "More Foes", a content mod which introduces a multitude of new foes to the game! They can be found all throughout the game, with the goal of making runs more varied, interesting and a bit more difficult. Training rooms are available for **1.6k downloadsupdated 7 mo ago
• DDragon Variantsby SivcriaIncreases the biodiversity of the local dragon wildlife by adding three new subspecies.1.6k downloadsupdated 4 y ago
• LLost and Confoundedby Vuzz_p1Enter a world of puzzles and logic! Adds "Puzzle Mode" to the Extra Modes menu, converting the Crypt into a sprawling maze of conundrums! Solve 50+ hand-crafted puzzles, as well as infinite auto-genenerated ones!1.1k downloadsupdated 2 mo ago
• MMaxwellby TattersTheBatMaxwell from Scribblenauts joins the ND Roster! Use his notebook to write your wildest dreams to life, granted they're in the form of an in-game entity. Also allows you to add adjectives to your creations to spice them up!901 downloadsupdated 20 mo ago
• AAriada: Delayed Actionsby JagYayuWhat happens if enemies act before players?857 downloadsupdated 18 mo ago
• MMossoby PsychicChickenA bunny cursed to never stop moving. Kick enemies and walls, using boots instead of weapons and shovels. Use your reposition spell to change parity, or after turning around to quickly get back on track!769 downloadsupdated 2 mo ago
• AAdagioby NBtelethiaAdagio was a good friend of Monk, who mysteriously dissapeared into a mysterious crypt several weeks ago. Using his divine powers of ice and electricity, Adagio is on a quest to save his friend and find out what the deal is with this crypt. Will you587 downloadsupdated 2 y ago
• AAyre's Racing Modby Ayre223Adds several QoL features for tournament organizers and racers including: Customizable item ban list Customizable boss chest exclusion list Better seed entry menu More compact lobby RTA tracker Racing-ready settings autoload384 downloadsupdated 2 y ago
• IItem Modifiersby 0TastyPie0Introducing Item Modifiers! Now items you find can have modifiers attached, which change how the item works in some way. Many item types are supported and can be randomly assigned one of 20+ different kinds of modifiers. There's also 2 new game modes305 downloadsupdated 1 mo ago
• *******by BotTujaAdds a new character, the ******, who can paint on tiles. Please check the custom rules for the options.250 downloadsupdated 3 y ago
• BBite the Dustby Liang35Rewind to the beginning of the level when you dead158 downloadsupdated 16 mo ago
• IItem Fusionby TattersTheBatAllows you to attach objects, items, traps, shrines, and more to your weapons. Many have special effects while fused. Default keybinds are 'Z' for fusing and 'X' for unfusing.155 downloadsupdated 2 y ago
• EExitGuesserby ShortcakeSweets_SteaCan you guess which way is the exit without moving around? Enhance your mapping skills!148 downloadsupdated 23 mo ago
• SSome Fun Allowedby TheJazMasterDo you want silly items, but don't want to make the entire lobby quit? Introducing: No Fun Allowed, but with 1/8th the commitment. Chests have a small chance to contain an absurd version of a weapon, spell or shovel. You'll know it when you see it134 downloadsupdated 3 y ago
• SSoul Stonesby TattersTheBatAdds TBoI-style Soul Stone consumables for all characters, with effects themed around the respective character's mechanics.85 downloadsupdated 14 mo ago
• AAll Bosses Modeby mybxPlay through every boss in the game in one run! Start a run from the extra modes section of the lobby.72 downloadsupdated 12 mo ago
• DDizzy Companyby Luis779This mod adds 3 new characters: Dizzdence, Dizzlody and Dizzria. Which are Cadence, Melody and Aria respectively, but every 10 beats they get confused for 5 beats and enemies gets confused the beats you are not. More dizzy variations of the other ba70 downloadsupdated 2 y ago
• PPolkaby BotTujaPlays Polka every level!60 downloadsupdated 4 y ago

44 replayability mods, most downloaded first. Each one has its own page here with what it needs to run and where its author publishes it; the files themselves stay with the author and are never re-hosted on this site.