Integrated Dungeons and Structures

Overview

Integrated Dungeons and Structures (IDAS) is a world generation mod that adds over 50 unique, hand-built structures to both the Overworld and the Nether. Unlike most structure mods that fill chests with vanilla loot, IDAS structures are built using blocks from Create, Quark, and Supplementaries, and their loot tables include items from those mods. The result is a world that feels genuinely integrated with your modded experience rather than bolted on top of it.

The mod spans a wide range of content. You will encounter roughly 20 small atmospheric world-building structures like campsites, animal dens, and market stalls. There are 15 unique houses and inns that serve as shelter for traveling players. Six magical towers offer Enchanting and potion resources. And then there are the seven endgame dungeons, massive multi-floor structures filled with hostile mobs, spinning Create death traps, and treasure vaults. You can browse all the mod's items and the Music Disc Slither recipe using the tabs above this page.

IDAS requires Create, Quark, Supplementaries, and Integrated API as core dependencies. Optional integrations are available for Biomes O' Plenty, Alex's Mobs, Guard Villagers, Artifacts, Ice and Fire, Ars Nouveau, Farmer's Delight, Waystones, Better Archeology, and several biome mods including Terralith, Biomes You'll Go, and Regions Unexplored.

Common Overworld Structures

The most frequently encountered structures in IDAS are the common set, which generates with 20-chunk spacing and 10-chunk minimum separation. These are spread evenly across the Overworld and include residential, commercial, and atmospheric buildings. Each one is built with detailed interiors using Quark and Create decorative blocks, making them feel alive and purposeful.

Houses and Shelters

The Abandoned House comes in two variants and spawns across most Overworld biomes. These provide basic loot, a Crafting Table, and sometimes a Furnace. The Brick House features a connected windmill and path, generating in Plains and Forest biomes. The Cottage is a cozy single-room dwelling, while the Farmhouse includes crops and animal pens, making it a great early-game base location.

The Hunter's Cabin spawns in Forest and Taiga biomes, providing basic supplies and a rustic atmosphere. The Hermit's Hollow is a secluded cave dwelling tucked into hillsides. The Beekeeper's House comes in two variants and includes Beehives, making it useful for players who need Honeycomb or Honey Bottles early on.

Inns and Taverns

The Bearclaw Inn is one of the largest common structures, consisting of a main lodge building with attached stables and connected pathways. It is designed by Howester1984 and features multiple rooms, a dining hall, and generous loot tables. The Treetop Tavern generates in Forests and is built into the canopy of large trees, spanning up to four variants. The Fisherman's Lodge sits near water and provides fishing-related loot and supplies.

Specialty Structures

The Witch's Treestump is a small, rare structure (weight 1 in the common pool) featuring a hollowed-out tree with potion ingredients and alchemical supplies. The Apothecary's Abode similarly focuses on brewing materials. The Redhorn Guild is another rare find (weight 1) that serves as an adventurer's guild hall with higher-tier loot than most common structures.

The Bazaar generates in Desert biomes and functions as a desert marketplace. The Haunted Manor and Haunted Houses add a spooky element to your world, with the Manor offering unique loot and dark atmosphere. The Fisherman's Lodge sits near coastal areas and provides maritime-themed supplies.

Magical Towers

IDAS adds two types of magical towers that generate across Forests, Birch Forests, Plains, Meadows, and occasionally Spooky Forest biomes. Wizard Towers are tall spellcaster residences containing Enchanting Tables, Bookshelves, Potion brewing supplies, and unique loot including Quark and Create items. Their library rooms can contain valuable books and enchanting materials.

Enchanting Towers are focused specifically on the Enchanting mechanic, providing pre-built Enchanting setups with Bookshelves arranged for maximum enchanting level. These are excellent mid-game finds for players who have not yet built their own Enchanting setup. Both tower types are part of individual structure sets, so they generate independently of the common structure pool.

If you have Ars Nouveau installed, you can also encounter the Archmage's Tower, a special variant that integrates with that mod's magical systems.

Mid-Tier Structures

Castles

Castles are large fortified structures that generate in the common pool. They feature multiple rooms, towers, a courtyard, and solid defensive walls. Castle loot tables include mid-tier equipment and materials, making them a worthwhile stop before heading to the true endgame dungeons. Cartographer Villagers sell Castle Maps at level 1 for 15 Emeralds.

Sunken Ships

Sunken Ships are ocean structures that come in two variants: a standard version and a coral reef version. The coral variant generates specifically in Warm Ocean biomes, while the regular version appears in general ocean biomes. These pirate ships contain underwater loot chests with maritime treasure, and Cartographer Villagers sell maps to them at level 1 for 15 Emeralds.

Necromancer's Spire

The Necromancer's Spire is a Nether-exclusive structure with four variants that generates across all Nether biomes. Its loot tables include potions (Strong Poison, Long Strength, Strong Regeneration, Fire Resistance), Alex's Mobs items like Warped Mixture and Lava Bottles, Quark Gravisand, Create Rose Quartz, Powdered Obsidian, and occasional Diamonds. The dark, bone-and-flesh-filled atmosphere makes it one of the most atmospheric structures in the mod. Expect to fight through undead mobs to reach the treasure at the top.

Ancient Portals

Ancient Portals appear in both the Overworld and the Nether, each with two variants. The Overworld versions generate on their own structure set with 50-chunk spacing, making them relatively rare. The Nether versions generate in all Nether biomes. These mysterious ruins contain pre-built Nether Portal frames and surrounding lore, suggesting an ancient civilization once traveled between dimensions.

Endgame Dungeons

The crown jewels of IDAS are its seven endgame dungeons. These are massive, multi-room structures with challenging mob encounters, traps, puzzles, and substantial loot. The mod's creator spent over 300 hours building and coding these structures, and it shows. Each dungeon has its own loot tables with unique reward distributions, and several feature working Create contraptions as environmental hazards.

The Labyrinth

The Labyrinth is a sprawling desert dungeon that generates exclusively in Desert biomes with 50-chunk spacing and 30-chunk minimum separation. It consists of multiple floors connected by staircases, with each floor being a winding maze of corridors and rooms. The structure includes a tomb section, a library, and a crocodile-themed section (when Alex's Mobs is installed). The Labyrinth also has Biomes O' Plenty variants with alternate entrance and floor layouts.

Treasure chests in the Labyrinth roll 5-8 items from a pool that includes Copper Ingots (5-10), Iron Ingots (5-10), Gold Ingots (5-10), Diamonds (1-3), Golden Apples (2-6), enchanted Iron equipment (levels 20-39 with treasure enchantments), Create Experience Nuggets (8-15), Create Rose Quartz (1-3), and Create Honeyed Apples. The enchanted Iron equipment uses treasure-level enchanting, meaning you can find items with Mending and other rare enchantments.

The Pillager Fortress

The Pillager Fortress is one of two structures in the rare structure set, generating with 55-chunk spacing and 35-chunk minimum separation. It spawns across Plains, Giant Tree Taiga, Taiga, Meadow, and Flower Forest biomes. This massive fortification is inspired by castle architecture and features interior walls, towers, jail cells, bedrooms, and a library.

The Fortress has four distinct loot tables. The basic chests contain common supplies, the bedroom chests hold personal items, the jail section offers prison-themed loot, and the library contains books and enchanting materials. A full clear of the Fortress provides enough resources to significantly boost your progression.

Tinker's Workshop

The Tinker's Workshop is the most Create-focused dungeon in IDAS, sharing the rare structure set with the Pillager Fortress. It generates in Forests, Birch Forests, Plains, and Meadows. What makes this dungeon unique is its use of active Create contraptions as traps, with spinning mechanisms that can damage or kill careless players.

The Workshop features five loot tables: basic, bedroom, main workshop, tools, and a vault. The vault is the most rewarding, containing Brass Ingots (1-3), Brass Nuggets (7-15), Zinc Ingots (3-7), Rose Quartz (3-7), Diamonds (3-6), Redstone (4-9), Lapis Lazuli (4-9), Experience Nuggets (10-30), Sturdy Sheets, Linked Controllers, Cogwheels, Large Cogwheels, Shafts, Brass Hands, Gearboxes, Brass Ladders, Supplementaries Brass Lanterns, and the Quark Clock Music Disc.

Ancient Mines

The Ancient Mines generate deep within mountainous and hilly terrain (Hills, Rocky Mountains, and Mountain biomes) with 50-chunk spacing and 30-chunk separation. These sprawling dwarven-style mine complexes feature three loot table tiers. The basic mine chests contain standard mining supplies, the hall chests offer mid-tier rewards, and the Create-themed chests provide substantial automation components.

The Create loot pool in the Ancient Mines is particularly generous, with Andesite Alloy (1-10), Zinc Ingots (1-3), Rose Quartz (1-3), Coal (3-8), Redstone (4-9), Lapis Lazuli (4-9), Diamonds (1-2), and Experience Nuggets (3-10). The second pool adds functional Create components: Sand Paper, Cogwheels (2-5), Large Cogwheels (2-5), Shafts (2-5), Gearboxes (1-3), Goggles, and Minecart Couplings (1-3). A third pool guarantees Crushed Ores: Crushed Iron Ore (4-5), Crushed Gold Ore (3-5), Crushed Copper Ore (3-5), and Crushed Zinc Ore (3-5).

Nether Structures

IDAS does not limit itself to the Overworld. The Nether receives the Necromancer's Spire and Nether Ancient Portals, both built using Nether-appropriate block palettes. The Necromancer's Spire generates with 35-chunk spacing and 20-chunk separation, making it relatively common within the Nether. It features four structural variants to keep repeated finds feeling fresh.

The Nether Ancient Portals are mysterious ruins that suggest ancient travelers once used portal networks across the Nether. These generate on their own structure set and provide lore-rich exploration points. When Alex's Mobs is installed, the Necromancer's Spire loot tables expand to include Alex's Mobs items like Warped Mixture, Warped Muscle, and Lava Bottles alongside the standard Potion, Diamond, and Create item drops.

Custom Items

IDAS adds three unique items to the game, all related to its custom soundtrack. The Music Disc Slither plays a track called "Slither" by Cama that runs for 2 minutes (2400 ticks). The Music Disc Calidum plays "Calidum" by Cama and runs for 3 minutes and 14 seconds (3880 ticks). Both discs are Rare-quality items with a max stack size of 1, just like vanilla Music Discs.

The third item is the Disc Fragment Slither, a Rare-quality crafting component found as loot in various dungeon chests. Collecting nine Disc Fragments Slither allows you to assemble the complete Music Disc Slither using a standard 3x3 Crafting Grid, similar to how vanilla Disc Fragment 5 works. The Calidum disc cannot be crafted and must be found as direct loot.

Structure Spawn Rates

Understanding how IDAS structures generate helps you find specific ones more efficiently. Structures are organized into structure sets with two key values: spacing (average distance between generation attempts in chunks) and separation (minimum distance between attempts). Lower spacing means more frequent generation. IDAS uses a custom placement type called Advanced Random Spread with a "super exclusion zone" system that prevents structures from generating too close to other IDAS structures.

Cartographer Map Trades

IDAS integrates custom structure maps into the Villager trading system. Cartographer Villagers gain new map trades at two different profession levels, and Wandering Traders also carry IDAS maps. This provides a reliable in-game method for locating structures without resorting to commands.

Optional Mod Integrations

One of IDAS's strongest features is its deep integration with other popular mods. When Biomes O' Plenty is installed and the BOP datapack is enabled, several structures gain alternate variants using BOP blocks. The Labyrinth, for example, has entirely separate BOP entrance and floor layouts. Haunted Houses also receive BOP-specific variants.

Alex's Mobs integration adds custom mobs to certain structures and expands loot tables with Alex's Mobs items. The Labyrinth gains a crocodile-themed section, and the Necromancer's Spire includes Warped Mixture, Warped Muscle, Lava Bottles, and the Lava Vision Potion in its loot pool. For 1.16 and 1.18, Alex's Mobs integration is built in; for 1.19+, you need to download a separate datapack.

Ice and Fire integration is detected automatically on 1.16 and changes some structure loot and mobs accordingly. The Foreboding Dread Citadel is an Ice and Fire exclusive structure that only appears when that mod is installed. Ars Nouveau adds the Archmage's Tower, a special wizard tower variant with magic-themed content. Guard Villagers, Artifacts, Waystones, Farmer's Delight, and Better Archeology all have varying levels of integration as well.

Configuration

IDAS is configured through datapacks rather than traditional config files (on 1.18+). To customize the mod, download the config datapack from the CurseForge page. Within the datapack, you can adjust structure spawn rates by modifying the spacing and separation values in the structure sets. Spacing controls the average distance between generation attempts (0-4096), while separation controls the minimum distance (0-4096, must be less than spacing).

To change which biomes a structure can spawn in, edit the biome tag files in tags/worldgen/biome/has_structure. To effectively disable a structure, either remove all biomes from its tag list or set both spacing and separation to extremely high values like 4000. To improve compatibility with other structure mods, add their structures to the "structure set to avoid" list in each worldgen/configured_structure_feature file.