Incendium¶
Incendium (v5.4.10) by Starmute / Stardust Labs is a complete Nether overhaul adding 8 new biomes, 9 structures, 30+ custom mobs, 29 custom items, and a Touhou-inspired final boss.
New Biomes¶
| Biome | Description |
|---|---|
| Ash Barrens | Ashes covering old lava lakes, home to the Forbidden Castle |
| Infernal Dunes | Red-hot sand dunes with smoking craters, home to the Infernal Altar |
| Inverted Forest | Trees grow upside-down from the ceiling — a 3D biome above other biomes |
| Quartz Flats | Gleaming quartz landscape with frozen lava seas, home to the Sanctum |
| Toxic Heap | Nuclear wasteland with poisonous sludge, home to the Nether Reactor |
| Volcanic Deltas | Extreme magma and basalt terrain |
| Weeping Valley | Eerie dark biome with howling winds and distant ghast cries |
| Withered Forest | Ancient battlefield, haunted by Restless Spirits |
The Nether height is increased from 128 to 192 blocks, and 3D biomes allow different biomes at different Y-levels.
Structures¶
Forbidden Castle¶
The most complex jigsaw structure in Minecraft — 227 unique pieces assembled differently every time. Contains dozens of room types (armory, library, laboratory, throne room, crypt, etc.) with custom Piglin variants as enemies.
Key loot: Blazing Hatchet, Chilling Blade, Greatsword of Sacrifice, Withersbane, Voltaic Trident, Scarlet Dagger, Sentry's Wrath, Multiplex Crossbow, Hefty Pickaxe, potions
Sanctum¶
A massive quartz church built by Illagers over a destroyed Bastion. A mining fatigue curse prevents block-breaking until you kill three Sanctum Guardians.
Three floors of content:
- Main Floor — Church layout with bells, towers, connected passages
- Basement — War Table, Daybreaker maze (floor collapse trap), coffin fireball trap, ravager-guarded storage, torture room, portal to Overworld
- Mausoleum — Infinite corridor trap, hidden crypt with item-frame lock puzzle
Key loot: Daybreaker (sword), Ragnarok (bow), Holy Wrath (crossbow), Scroll of Returning, Death Potion (all negative effects — extremely rare)
Infernal Altar¶
A dome with miniature Nether biome representations. Throw a Nether Star on the lectern to summon the Hovering Inferno boss.
Other Structures¶
| Structure | Location | Description |
|---|---|---|
| Nether Reactor | Toxic Heap | Source of biome's pollution, guarded by Radiation Director |
| Abandoned Tower | Quartz Flats | Contains rescuable Ghastling pet companions |
| Quartz Kitchen | Quartz Flats | Guarded by Torte the skeleton chef |
| Piglin Village | Various | 42-piece jigsaw village with passive Piglin NPCs |
| Pipeline | Various | Industrial pipe facility with Prime Sentries (carry Totems of Undying) |
| Ruined Lab | Withered Forest | Spherical lab with buffed Wither Skeletons |
Boss: Hovering Inferno¶
| Stat | Value |
|---|---|
| Health | 700 HP (350 hearts) |
| Armor | 20 defense points |
| Summon | Throw Nether Star on Infernal Altar lectern |
| Re-summonable | Yes |
Phase 1 — Spell Cards¶
The boss teleports around the arena using 13 different attack types in randomized combinations: shulker bullets, fireballs, fire patterns, summoning minions, evoker fangs, Desert Blazes. Attacks grow more complex over time.
Phase 2 — Last Stand¶
The boss becomes invulnerable and slowly loses health on its own. Two rotating lasers appear (one at feet, one at head — crouch to dodge). Shulker bullets fill the arena. Your only option is to survive.
Boss drops (1 of 5): Firestorm, Trailblazer (bow), Prismatic Shield, Necrotic Shield, Infernal Feather
Surviving Phase 2 rewards an Infernal Piece — used at a Smithing Table to upgrade Elytra with armor (Infernal Wings).
Custom Items¶
Weapons¶
Daybreaker, Warping Witherblade, Withersbane, Chilling Blade, Greatsword of Sacrifice, Scarlet Dagger, Blazing Hatchet, Voltaic Trident, Ragnarok, Trailblazer, Sentry's Wrath, Firestorm, Holy Wrath, Multiplex Crossbow
Equipment¶
Scout's Battle Helm, Hazmat Suit, Infernal Wings (upgraded Elytra), Prismatic Shield, Necrotic Shield, Radiation Shield, Hefty Pickaxe
Consumables¶
Miner's Ale, Suspicious Brew, Elixir of Undying, Death Potion, Ran's Apples, Scroll of Returning
Custom Mobs¶
Forbidden Castle¶
Piglin Scout, Archer, Knight, Paratrooper, Alchemist, Pyromancer, Blacksmith, Pipeline Sentry
Sanctum¶
Sanctum Cultist, Ritualist, Inquisitor, Illusionist, Apostle, Ravager, Guardian, Protector
Biome Mobs¶
| Mob | Biome |
|---|---|
| Desert Blaze | Infernal Dunes |
| Toxic Slime | Toxic Heap |
| Restless Spirit | Withered Forest |
| Headless Warrior | Withered Forest |
| Withered Scientist | Withered Forest |
| Radiation Director | Toxic Heap |
| Ghastling (pet) | Quartz Flats |
| Torte (skeleton chef) | Quartz Flats |
Ghastling Pet¶
Rescue imprisoned Ghastlings from Abandoned Towers to gain a companion that follows you and attacks Ghasts. Feeding is toggleable.