Mods / Monsters

• DDownfall Expansion Mod - 6.0by Michael MayhemDownfall is a full-featured Expansion for Slay the Spire, including a new campaign, NINE new heroes to play, new relics, new cards, new potions, and more. The Heart demands that this endless cycle of slaughter be finished. Answer the call as a Villain, and see to the defense of the Spire. Integra...1.1M downloadsupdated 6 mo ago
• RReplay the Spireby The_Evil_PickleNote: This mod is no longer being updated. It's been far too long now, and I need to move on. This mod adds: * 60+ Relics (4 ironclad, 4 silent, 6 defect, 1 watcher, 50+ shared) * 70+ Cards (15 ironclad, 15 silent, 15 defect, 11 watcher, 15 colorless, 15 curses) * 5 Events * 11 Potions * 2 Rooms...416.9k downloadsupdated 5 y ago
• LLobotomyby Call of FleetThis mod is based of Lobotomy Corporation. This brings you a new special experience (lol). Please try not to feel discouraged if you die too many times at the beginning, because everything is going to be alright! Once you understand this mod enough, we believe you will be handy in this. This mod...207.1k downloadsupdated 5 y ago
• AArknightsby 76561198389809126The famous character of the mobile game Arknights, W climbs up the spire. W uses a mechanism that enhances card effects consuming SP. The card consumes a certain amount of SP and activates its powerful capabilities. W has eight classes with different abilities. Each class has the following charac...184.3k downloadsupdated 5 y ago
• RRuinaby DarkgladeAdds a brand-new Act 1, 2, 3, 4, and 5 inspired by Library of Ruina. Dive into a sprawling, mysterious library where the monsters inside the books are very much alive. Fight through these horrid creatures, recount the memories of those that have fallen before you, and reap the spoils that only a...167.5k downloadsupdated 10 mo ago
• GGensokyoby DarkgladeAdds a brand-new Act 1, 2, and 3 inspired by Touhou Project. Venture into the wondrous land of illusions and encounter its various denizens. Some of them may be friends, some of them may be foes, but all of them are sure to leave a memorable impression. Act 1 Features: 3 bosses 3 elites 13 hallwa...142.3k downloadsupdated 3 y ago
• TThe Animatorby EYBMod based on anime characters which currently contains 1 new Act, 1 new class, 170+ new cards (13 main anime series), 26 new relics, 15 new enemies, 6 new events. Discord server, for future updates, previews and general feedback. The mod is still in progress and I will add more cards, relics and...141.0k downloadsupdated 5 y ago
• LLobotomyExtraby Call of FleetThis mod is an expansion to Lobotomy Mod, and requires it to run. Please make sure the load order in ModTheSpire is correct. BaseMod must be loaded on the top of the list, while this mod must be loaded after Lobotomy Mod. It's highly discouraged that you subscribe to this mod without playing the...121.7k downloadsupdated 4 y ago
• AActs of Hallownestby VenIMThe Acts of Hallownest 3 New Acts Inspired by the amazing world of Hollow Knight. Hollow Knight and Associated Characters, Art, Story and Sounds property of Team Cherry. I don't claim rights to anything except my love for both Slay the Spire and Hollow Knight. If you haven't played the original H...112.5k downloadsupdated 6 y ago
• SSousou no Frierenby 76561199018223486Please don't install Slay the Spire in disk C, it may crash!!! Mod Introduction The mod, based on the anime Sousou no Frieren or Frieren: Beyond Journey's End, now adds 2 new characters Frieren,Fern 100+ character cards, 36 Magic items, 17 character relics, 3 potions, 4 events, 1 new boss in act...105.2k downloadsupdated 5 mo ago
• KKinomotoSakuraModby 兔子舒Write in front: English translation has been added, welcome to modify, suggest and optimize. Japanese translation has been added, welcome to modify, suggest and optimize. Spanish translation has been added, welcome to modify, suggest and optimize. Module introduction This mod adds a new character...98.7k downloadsupdated 5 y ago
• TThe Jungleby Bug KiooehtPresenting the first of it's kind - an entirely new Act! Embark on an epic journey after completing the Exordium, to a dangerous and wild Jungle just outside of the Spire's City. Encounter fearsome tribal dwellers, challenging wildlife, and an entire full set of Bosses unique to the Jungle. The J...90.2k downloadsupdated 7 y ago
• SSpire Biomesby (Gk) EraselsIntroduction: For the sixth year in a row, I'm glad to present another anniversary project! The date is 2024/01/18 and that means it's been six years since Kiooeht gave us the power to do whatever we want to the spire via Mod the Spire. Once again, a whole bunch of people came together to make an...89.7k downloadsupdated 1 mo ago
• HHonkai: Star Rail Modby 76561199157402065A mod themed after the game Honkai: Star Rail. It includes 1 new character (Stelle), 200 cards, 100+ relics and 30+ events. == Trailblaze · Core Mechanics == Dealing damage reduces the enemy's toughness, and breaking the toughness to 0 can break the enemy. When breaks, different effects are trigg...71.4k downloadsupdated 5 mo ago
• CConspireby twanvlExpansion mod that adds several new monsters, elites and bosses to the game, as well as new cards for the 3 standard classes, and new relics. Currently adds: * 5 monsters, all fully animated * 2 bosses * 3 events * 18 cards * 17 relics * 2 potions69.1k downloadsupdated 7 y ago
• PPokemon Regionsby DarkgladeAdds a set of brand-new acts inspired by Pokemon. Go on your very own Pokemon journey in the Spire - encounter many marvelous creatures, defeat them, and catch them to fight by your side! Act 1 (Kanto): 3 bosses 3 elites 12 hallway fights 12 events New cards and relics Act 2 (Johto): 3 bosses 3 e...64.8k downloadsupdated 12 mo ago
• TTogether in Spire - Official Booster Pack (Update I)by Draco⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀Together in Spire - Official Booster PackWhat is the Booster Pack?TiS - Booster Pack is a HUGE multiplayer expansion pack for Together in Spire. It contains 50+ new cards, 30+ new relics, a new elite fight, and more, ALL with new and unique multiplayer co-op mechanics ! You can now give...53.7k downloadsupdated 3 y ago
• KKomeijiModby Call of FleetHi guys, I'm hoykj. My English is not good enough, so if you see anything not good enough or not suitable in this description or mod, tell me please. I mad this mod for interest's sake. Since my ability is limited, this mod may not be really satisfactory, please understanding, thank you. This mod...52.5k downloadsupdated 3 y ago
• HHololive Korone Inugami MOD+Okayuby Peperon※This sentence was made using the translation function※ This MOD changes the appearance of Ironclad to Hololive's Inugami Korone. And as a bonus, the appearance and voice of the merchant will be changed to Nekomata Okayu. ※※※This mod will not work with just subscribing, you need to follow these s...49.9k downloadsupdated 2 y ago
• BBestiaryby ojbShow monster AI and potential abilities with an in game overlay! While in combat, you can Shift+Right+Click a monster to get a popup screen listing out their potential move sets. This mod should work for all monsters in the base game - across all ascension levels! Right click again to close out o...49.4k downloadsupdated 6 y ago
• [[Arknights] Margaret Nearlby 76561198795848592Add a new character -- Margaret Nearl, from Arknights. Keywords: Guardian: In this stance, you gain 0 Dexterity. Upon entering this stance, this number increases by 1. (Initial stance) Dreadnought: In this stance, you gain 0 Strength. Upon entering this stance, this number increases by 1. Light:...47.4k downloadsupdated 22 mo ago
• BBundleCore - Trials of the Slayers Pt 2by SandTagFramework Extension used to facilitate crossover relics and mod config options. All bundles use this mod. You may use this mods features to make your own mods, but remember to include it as a dependency both in the MTS file and on steam. Supported mods include things like Downfall and Packmaster....46.2k downloadsupdated 15 mo ago
• RRing Of Destiny(WIP)by Expendable DiverSorry, there is no English version yet. We will add English in a future version. Ring Of Destiny is a full mod with 5 new character and their cards ,relic and alterative skins. Also will have full 4 act and a special boss fight.36.8k downloadsupdated 17 mo ago
• MMimic Modby Blank The EvilAdds mimics that surprise you at treasure rooms and question mark rooms.30.6k downloadsupdated 8 y ago
• KKanameMadokaby elfceliaAdded linkage content with the Akemi Homura mod. Requires both mods to be enabled: Please check if the version number is 3.1.7 Condition for Akemi Homura to access the third option: Requires at least 10 Karma Count in the starting deck. This mod adds a new character, Kaname Madoka, 82 cards, 4 ne...29.7k downloadsupdated 12 mo ago
• SSpire Questsby (Gk) EraselsIntroduction: The bell tolls, it's time for the eighth and last spire modding anniversary mod! 2026/01/18 marks the eighth year of Mod the Spire. The modding community over on the official discord has come together again to make something cool for everyone for one last time (for StS1 at least). D...29.2k downloadsupdated 6 mo ago
• CContingencyContactby 76561198984454884In order to fight against the invincible spire,You leave countless information for yourself in the samsara of death, through which you can find the only way to defeat this tower. By choosing a contract to improve or reduce the difficulty of the game, it will be regarded as a successful challenge...26.4k downloadsupdated 5 y ago
• BBattle Towersby (Gk) EraselsIntroduction: It is this time of year again, the fourth year since Kiooeht blessed the modding scene with Mod the Spire. That's right, 18/01/2022 marked the fourth year of modding the spire, so a lot of the members of the modding discord came together and made something for everybody to enjoy. De...24.8k downloadsupdated 12 mo ago
• SSlay The Terrariaby TNoNameIt was completed together with 1.4.5. Slay the Spire ✖ Terraria A game featuring a character with thick armor, using a lot of consumables, being able to switch between different states (weapons), and a blue character. All enemies and events on the first to fourth floors were replaced, and special...24.8k downloadsupdated 17 d ago
• SSami Rougeby FimmlpSThis MOD is adapted from Expeditioner's Joklumarkar ! ! ! Please subscribe the PreMOD-TreeHoleMod ! ! ! Q: Why we divide our Mod into 2 MODs which includes the TreeHoleMod ? A: Because we want to provide a solution for the compatibility issue of the coming MODs which may be related to TreeHoleMod...24.4k downloadsupdated 8 mo ago
• 【【Arknights】Mizuki And The Spire Modby MC_manipulatorMizuki, who was supposed to go to Iberia, was brought to the Spire by a mysterious force...... New Content Adds 1 new character: Mizuki Adds 52 + 35 new cards, including 4 basic, 15 common, 20 uncommon, 12 rare and so on Adds 6 bosses and 25 different monsters Adds 30 adaptation events based on A...23.0k downloadsupdated 20 mo ago
• CCorrupt the Spireby modargoEncounter corrupted rooms throughout the Spire that provide new challenges, gain powerful corrupted cards and corrupted relics, and see how the double-edged sword of corruption empowers both you and your foes. Make bargains with alien forces, see beyond the Spire, and wield the power you obtain a...21.1k downloadsupdated 2 y ago
• BBundle Of Terra - Polished Update 2by SandTagA terraria themed bundle with a mix of relics and potions! The Bundle of Terra adds lots of the content from Terraria to the spire, with 15 new potions, 15 relics, new types of orbs and as always, fun crossover content with previous bundles! The new potions even come with their own bottle images!...20.7k downloadsupdated 15 mo ago
• PPale of the Ancientsby RazThis is an act 4 containing my attempt to conclude the story of the spire by giving it an alternate final boss and ending. It is accessed via an event that pops up after defeating the act 3 boss (keys not required). The act itself contains 5 adapted basegame encounters (with very big twists), as...19.0k downloadsupdated 3 y ago
• FFated Encounterby 76561198795848592Fated Encounter is an underlying event in Sarkaz's Furnaceside Fables from Arknights. We restored and expanded its relevant content to deliver this mod. Added Game Mechanic: Idea and Refresh After combat, there is a 30% chance to add a Idea into reward. Game starts with 1 Idea. Idea can be used t...18.9k downloadsupdated 12 mo ago
• [[Arknights] Rhine Labby 76561199197218727Through our hands, the future will become now, and now will become then. Introduces new selectable characters: Rhine Lab from "Arknights". The most PhD-dense organization Introduces 73 normal cards, 4 colorless cards and derivative cards. Also introduces 20 relics, 5 events, 15 enemies. And a sec...17.8k downloadsupdated 7 mo ago
• EElden Ringby OLendari0Mod based on the elden ring game! Apart from the fact that it's my first mod, it's in a very new phase of development, so maybe it's possible to find wrong texts, bugs, crashes, and many other problems. This version is not even close to the version I want to release in the future, but it's a vers...14.7k downloadsupdated 3 y ago
• TThe Abyssby modargoThe Abyss is an alternate act 3 (and 4!) themed around horrors and aberrations. Once where eldritch and primeval beings were sealed away, the Abyss is now at the heart of their reawakening. And beyond the Abyss is found the Void, where adventurers will face the ultimate test. Together with the Me...14.5k downloadsupdated 4 y ago
• TThe Elementariumby modargoThe Elementarium is an alternate Act 2 themed around elementals and golems. Once the center of a thriving civilization that created many magical wonders, the Elementarium now holds only ruins. Together with the Menagerie (act 1) and the Abyss (acts 3 and 4), it is part of a full set of alternate...13.7k downloadsupdated 4 y ago
• WWandering Minibossesby (Gk) EraselsIntroduction: Hello and welcome to the second modding anniversary project! That's right, 18/01/2020 marked the second year of modding the spire, so a few members of the modding discord came together and made something. Description: Wandering minibosses is a content mod that adds, as the title may...13.5k downloadsupdated 3 y ago
• BBundle Of Peglin - Electrobfying Update!by SandTagEver looked in your steam library and couldn't decide whether to play Peglin or slay the spire? Why not both? The Bundle of Peglin adds ALL of the events from Peglin to slay the spire, along with plenty of Orbs and Relics. The relics can be found in their normal events or in the general pools, wh...13.3k downloadsupdated 16 mo ago
• HHalloween Enemiesby 76561199085313424Halloween! Adds Halloween-themed costumes for every enemy. Each enemy has unique skins, names, and in some cases, modified dialogue or move names. These are purely visual changes and do not affect gameplay. Many of the costume ideas were inspired by the Korean community and the Modding Forum on D...12.8k downloadsupdated 12 mo ago
• CContingency Contract Extensionby 76561198359706396A simple extension for REME's Contingency Contract with some more new contracts. Most of them are not so easy or so hard??? Current not support English for I'm lazy and busy. If any likes to translate it, leave a comment below.11.2k downloadsupdated 5 y ago
• TThe Menagerieby modargoThe Menagerie is an alternate act 1 themed around beasts and mages. Once the stronghold of a cabal of mages who experimented with the boundaries of life itself, the Menagerie is now overrun by their twisted creations. Together with the Elementarium (act 2) and the Abyss (acts 3 and 4), it is part...10.0k downloadsupdated 3 y ago
• FFixCrashMultipleRoomsby 76561198396145012Fix crash when entered multiple rooms or killed multiple bosses on the same floor. (For example: using Loadout-Mod, console, binary tree bug, etc., to enter additional monster rooms or boss rooms.)8.8k downloadsupdated 3 y ago
• SSui`s Garden of Grotesqueriesby 76561199030600463This MOD is adapted from "Integrated Strategy: The Strange Tales of Sui's Garden" Content Introduction Remnant Consciousness of the Sui Beast This is a map expansion mod primarily presented in the form of tree hollows. In the latter half of the normal map, several tree hollow nodes will randomly...8.3k downloadsupdated 2 mo ago
• MMorimens Modby 76561199183437143Warning This mod is not yet complete. It is still a testing version and is still a long way from the full version. v0.14.0 Test Version New Content - New Config: enable/disable room background from Morimens - 4 Chaos Realm Cards: "Pinions of Time", "Twin Wings", "Four Wings", "Six Wings" v0.13.0...8.3k downloadsupdated 13 mo ago
• [[EN] The Fakerby AzutoI won't be updating this mod anymore. Instead I will port this to StS2 once sufficient modding is available. The Faker A young man who strives to become a Hero of Justice. Conflicted between ideals and hypocrisy, only one Fate awaits as he steps into the Spire. This is a mod based on a certain pr...7.4k downloadsupdated 20 mo ago

73 monsters 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.