Eternal Starlight

Overview

Eternal Starlight adds an entirely new dimension accessible through a Starlight Portal Ruins structure in the Overworld. The dimension contains ten biomes, two boss arenas, dozens of new mobs, multiple material tiers, and a magic system centered on Mana Crystals and spell crests. Progression runs from defeating the Gatekeeper in the Overworld all the way through two dimension bosses and into high-tier alloy gear.

The mod is heavily focused on exploration and combat. Every biome contains unique ores, plants, and mobs that feed into different material chains. Browse all recipes and items added by the mod using the Recipes and Items tabs above.

The Gatekeeper

The Gatekeeper is the overworld boss that guards the portal. With 175 health (87.5 hearts), 15 armor, and a fast combo of attacks, he functions as a gear check before the dimension. His meteor drop attack is the most dangerous, landing rocks on your head while you are already in melee range.

The goal is not to kill the Gatekeeper in one attempt at all costs. He drops the Reward Bag when defeated, which contains the Orb of Prophecy needed to activate the portal, several Seeking Eyes, and the Starlight Storybook. The Smithing Templates he can drop allow upgrading Thermal Springstone tools to the Starfire tier.

The Eternal Starlight Dimension: Biomes

The dimension contains ten distinct biomes, each with its own geology, plant life, and cave system. First-time visitors are struck by the purplish ambient lighting, glowing vegetation, and the complete absence of sky-based weather. Ether Rivers cut between biomes and are dangerous to swim in, releasing radiation on contact.

Starlight Forest and Starlight Dense Forest

The most common biome. Tall Lunar Trees with purple foliage dominate the landscape, along with Glowing Mushroom trees whose tops can be harvested with Silk Touch for use as light sources. Spring Water lakes appear here containing Springstone Ore, the raw form of the Thermal Springstone material. Starlight Flowers and other flora used for crafting Seeking Eyes and dyes grow throughout.

Scarlet Forest

A striking red forest with Scarlet Trees and webs hanging from the canopy. The Nightfall Spider spawns here frequently. Aureate Flowers and Pink Roses grow on the forest floor and can be crafted into yellow and pink dyes respectively. Scarlet wood provides a unique red-toned building material.

Torreya Forest

A warm forest featuring Torreya Trees with vines. Stripping Torreya Logs has a small chance to drop Raw Amaramber; Fortune on the axe increases this chance significantly. Amaramber is one of few materials that can craft Spears, making this biome worth farming even after initial exploration.

Dark Swamp

A purple-tinted mangrove-style biome with Banyin Trees and Nightfall Mud as the primary ground block. Pungency Fruit vines grow naturally here. The Shimmer Lacewing, a passive decorative insect, can be found flying above the Shimmer River that borders this biome. Deepsilver Ore spawns in the caves beneath this biome.

Starlight Permafrost Forest

A freezing biome with Northland Trees, Ashen Snow ground cover, and Icicles hanging from cave ceilings. Aurora Deer spawn on the surface and drop highly nutritious Aurora Deer Steak. The Yeti also appears here, dropping Yeti Fur for crafting colored Beds and Carpets. Glacite Crystals grow in large formations in the caves below and are the only source of the Glacite material.

Crystallized Desert

A barren biome dominated by Red Starlight Crystal formations and Twilight Sand. Crystals are essential for crafting Mana Crystals and the Orb of Prophecy. The Thirst Walker, a sand-dwelling neutral mob, spawns exclusively here. Lunaris Cactus plants yield Lunaris Cactus Fruit, which can be processed into Lunaris Cactus Gel.

The Abyss and Underwater Biomes

The Abyss is the deepest underwater biome, comparable to the Mariana Trench in scale. It contains Abyssal Fire blocks, glowing Lumenstem plants, Luminofish, and Luminaris as exclusive aquatic creatures. The Lush Shallow Sea and Spiral Kelp Forest offer more accessible underwater exploration with coral reefs and Spiral Kelp plants used to craft Mana Crystal components.

Boss 1: The Starlight Golem

Finding the Golem Forge

The Starlight Golem resides inside the Golem Forge, a large underground labyrinth. Look for giant Voidstone circles on the surface, visible on the map as distinctive ring formations. Descend through the circles to reach the forge, navigating lava hazards on the way down. The structure contains significant loot in its rooms, so search thoroughly before engaging the boss.

Boss Mechanics

The Starlight Golem is completely immune to damage while its shield is active. Energy beams connect the boss to several generators around the arena. Right-clicking a generator deactivates it. Deactivate all generators to stun the Golem and open a damage window before it recharges. Repeat this cycle until the Golem is defeated.

The Golem's most dangerous attack is a wide light beam fired when it raises both arms. Run away from this at all costs. It also slams the ground creating shockwaves. Freeze mobs spawn throughout the arena and their projectiles inflict a freezing debuff, so wear at least one piece of leather clothing or a Glacite armor piece for resistance.

Drops and Rewards

The Golem's Reward Bag contains Oxidized Golem Steel Ingots (smelted into Golem Steel Ingots for crafting weapons), Thermal Springstone, Spectral Arrows, Seeking Eyes, armor trim Smithing Templates exclusive to this mod, and rare uncraftable weapons including the Crystal Crossbow. Golem Steel is the gateway to some of the strongest melee weapons in the mod.

Boss 2: The Lunar Monstrosity

Finding the Cursed Garden

The Lunar Monstrosity lives inside the Cursed Garden, a massive surface maze. Throw Seeking Eyes with a Lunar Berry or Tenacious Vine in your offhand to track its location. The maze contains extensive loot in its rooms, some of which is critical for later crafting. Explore the maze fully before triggering the boss.

Fire Mechanic

The Lunar Monstrosity is completely immune to damage unless it is on fire. Bring a weapon enchanted with Fire Aspect before this fight. Without fire damage, every hit will deal zero damage regardless of weapon strength. This is the single most important mechanic of the fight and the most common reason players fail.

Boss Attacks

The Lunar Monstrosity deploys Tangled Hatred tentacles that extend from the floor and slam you. These tentacles must be killed individually. It also launches Plant Bombs that deal heavy damage on impact, fires thorns from the ground that deal massive damage on contact, and charges toward you by emerging from underground.

In its second phase the boss releases shockwaves around itself and dramatically increases Plant Bomb frequency. If health is critically low, retreat into the maze corridors. The Lunar Monstrosity and its Tangled Hatred cannot reach into the narrow maze tunnels.

Drops and Rewards

The Lunar Monstrosity's Reward Bag drops the Wand of Teleportation (creates a damaging energy field around you), the Moonring Bow, Tangled Skulls, a music disc, raw ingots for armor crafting, a Smitten Gem, and Tangled Skulls. The Tangled Hatred mini-boss also drops Tenacious Vines. Both drops together enable crafting the Crescent Spear.

Mobs of the Eternal Starlight Dimension

Tameable Mobs

The Crystallized Moose is the primary tameable mount. It attacks with a powerful sonar wave that launches nearby mobs, which becomes available to you after taming. Tame it using any cooked meat. Being airborne, a tamed moose never takes fall damage and its sonar attack is excellent crowd control. Killing a wild Crystallized Moose drops Shivering Gel, used to craft Sonar Bombs.

The Grimstone Golem is a utility mob summoned by placing a Carved Lunaris Cactus Fruit on top of a Grimstone Brick block. It cannot fight but can carry up to one full stack of blocks, acting as mobile storage during exploration. The Aethersent Golem is assembled similarly using a Block of Aethersent, but currently provides no function and may be expanded in future updates.

Passive Mobs

The Ratlin is a small critter found across nearly every biome. It flees from players and currently only drops Ratlin Meat, which cooks into Cooked Ratlin Meat, along with occasional Leather and Cave Moss. The Inch is similarly common and drops Lunar Berries, the item needed to track the Lunar Monstrosity. The Shadow Snail becomes nearly invincible when hiding in its shell, requiring several Netherite Sword hits to crack open.

The Yeti rolls across snow in the Starlight Permafrost Forest and drops Yeti Fur in red, purple, yellow, and white color variants. Yeti Fur is used to craft colored Beds and Carpets. The Aurora Deer spawns in the same biome and can be bred using Abyssal Fruit. Cooked Aurora Deer Steak provides strong saturation, making this biome the best food source if you settle there.

Luminofish and Luminaris are exclusive to The Abyss and are rare finds. They cook into highly nutritious food items. Players who catch them alive in Buckets can raise personal aquariums as breeding stock. The Rookfish drops Rookfish Air Sac, used to craft the Diving Suit armor set, and can be cooked into Cooked Rookfish then combined into a Rookfish Skewer.

The Starfire Bird is a passive flying creature that can be housed in a Starfire Bird Aviary. Aviaries are crafted using any wood planks combined with Starfire, giving each wood type its own aviary variant. The bird provides no direct gameplay benefit but adds ambient life to bases built in the dimension.

Neutral and Aggressive Mobs

The Thirst Walker is a neutral sand-dwelling mob in the Crystallized Desert with 40 health (20 hearts) and 4.5 attack. Killing it drops the Tooth of Hunger, used to craft the Dagger of Hunger and Voracious Arrows. The mob deals 4.5 damage (2.25 hearts) and has double a standard player's health, so approach carefully.

The Nightfall Spider is the most common aggressive mob, spawning across most biomes especially in the Scarlet Forest. It inflicts a Glowing effect on hit rather than poison. Its dropped Nightfall Spider Eye is used to craft the Soulit Spectator, a throwable item that lets you view distant areas safely. The Lonestar Skeleton wields the uncraftable Shattered Sword, a blade with a detachable piece that returns when right-clicked.

The Creteor is a meteor shower mob, dropping during rare meteor shower events in the dimension. Killing it and the Tiny Creteors that spawn after yields Aethersent, a high-tier material for meteor-summoning armor. You can trigger meteor showers manually using the Aetherstrike Rocket item. The Tangled is a zombie-like mob in the Starlight Forest that inflicts Poison on hit and may spawn a Tangled Skull that chases you and explodes.

Materials and Ores

Each biome in the Eternal Starlight dimension has a unique cave geology beneath it. Ores spawn in Grimstone, Voidstone, Eternal Ice, and Haze Ice variants depending on the biome. Saltpeter Powder is the most common ore and acts as a smelting catalyst in the Alloy Furnace. Starcore is a mid-tier ore used in the Alloy Furnace to improve metal yield and in crafting Cinder Bricks.

Deepsilver

Deepsilver is found in most cave types and is one of the first dimension-exclusive metals players encounter. It produces armor with 15 total defense, speed boost, knockback resistance, and effect immunity. Deepsilver is also used to craft basic tools, Shields, Shears, and Tripwire Hooks. The Alloy Furnace doubles Deepsilver yield when combined with Saltpeter Powder.

Thermal Springstone

Thermal Springstone Ingots are smelted from Thermal Springstone blocks found in spring lakes throughout the Starlight Forest. The armor is heat resistant, reducing fire damage taken, and causes fires when mobs are hit. The Thermal Springstone Hammer is a notable weapon, dealing 10 base damage (5 hearts) with a slower attack speed. Thermal Springstone tools can be upgraded to the Starfire tier at a Smithing Table.

Glacite

Glacite shards grow in large crystal formations exclusively in caves beneath the Starlight Permafrost Forest. One large crystal provides abundant material. Glacite armor freezes attacking mobs, and the Glacite Shield actively freezes enemies that block with it. Glacite tools have very low durability (500) so reserve this material for shields and armor rather than everyday tools.

Malarite

Malarite is an ore found across most cave types. It produces fast weapons but no armor. Malarite Arrows apply Poison to enemies. The Malarite Spear can be upgraded with Pungency Fruit at a Smithing Table to create the Pungency Fruit Spear, which inflicts Nausea and a mod-exclusive Tear effect on hit.

Starlit Diamond

Starlit Diamond is a gem found in Grimstone, Voidstone, Eternal Ice, and Haze Ice ore variants across the dimension. It creates tools with 2500 durability, the highest of any standard material in the mod. Starlit Diamond armor provides 20 total defense with 3 toughness, comparable to Diamond in vanilla, and has 22 enchantability.

Unrealium and Aethersent

Unrealium is a late-game alloy crafted in the Alloy Furnace from Deepsilver Ingots, Golem Steel Ingots, Malarite, and Soul Dew. It produces 20-defense armor and tools with 1200 durability and 15 mining speed. Aethersent is obtained from killing Creteors during meteor showers. Its armor triggers meteor showers whenever the wearer takes damage, dealing falling-block damage to attackers.

Armor Sets

Eternal Starlight adds nine distinct armor materials, each with different strengths and special effects. Deepsilver provides early-game speed and knockback resistance. Thermal Springstone offers fire resistance and mob combustion. Glacite counters freeze enemies. Starlit Diamond and Unrealium are the top-tier choices for general combat. The Alchemist set made from Thioquartz grants extended potion throw range and Ether River radiation immunity.

Weapons and Combat

Eternal Starlight adds swords, axes, spears, scythes, hammers, greatswords, crossbows, bows, and specialty thrown weapons. Most materials have a full weapon set, though Malarite and Aethersent focus on specific weapon types. The Starfire and Flowglaze tiers are Smithing Table upgrades from Thermal Springstone and Glacite tools respectively.

Melee Weapon Tiers

Special Weapons

The Thermal Springstone Hammer is a two-handed weapon dealing 10 damage (5 hearts) with a slower swing. Scythes hit multiple targets in a wide sweep. Greatswords like the Golem Steel Greatsword and Moonring Greatsword deal heavy damage and the Moonring variant can block attacks like a shield, combining offense and defense. Spears (Malarite Spear, Pungency Fruit Spear, Crescent Spear) are thrown and retrieved.

The Crescent Spear requires two post-boss items from the Lunar Monstrosity fight and has the Riptide ability from Tridents but activates in all conditions, not just rain. The Rage of Stars is the Aethersent sword and drops a meteor on every mob kill. The Glistering Sword has 8000 durability, making it the longest-lasting weapon in the mod, though its damage bonus is modest at +2.0.

Ranged Weapons and Arrows

The Starfall Longbow is crafted from Aethersent Ingots and Creteor Hide, and has a chance to summon meteor showers on hit. The Flowglaze Bow fires Flowglaze-infused arrows. The Crystal Crossbow deals damage over time for several seconds after each hit, making it effective against high-health enemies. The Wilted Crossbow fires in an arc that pins any mob in its path without needing direct aim.

Several unique arrows are available. Malarite Arrows inflict Poison. Thioquartz Arrows shatter on impact, dealing group area damage. Aethersent Arrows also shatter for group damage. Voracious Arrows are crafted with the Tooth of Hunger and deal additional damage based on the target's current hunger. Glacite Arrows freeze on impact.

The Dagger of Hunger

The Dagger of Hunger is crafted from the Tooth of Hunger dropped by the Thirst Walker. When fed enough kills it grants a speed and damage boost. If left unfed it consumes the player's health directly. The Tooth of Hunger can also be brewed into potions that inflict a hunger-draining effect on mobs.

Crafting Machines

Alloy Furnace

The Alloy Furnace is the dimension's primary processing machine. It improves metal yield by combining ores with Saltpeter Powder: smelting Deepsilver Ore with Saltpeter produces 2 Deepsilver Ingots rather than 1. Adding Starcore with Gold or Copper ores gives even greater output. The Alloy Furnace also combines multiple metals into alloys like Golem Steel Ingots and Unrealium Ingots that cannot be made any other way.

The Alloy Furnace has an overheat mechanic. If left running for too long without cooling, it will explode. Cool it with a cooling item before it overheats. Wax the Alloy Furnace with Honeycomb or Raw Amaramber to prevent oxidation.

Drying Rack

The Drying Rack converts Rotten Flesh into Leather, Kelp into Dried Kelp, Wet Sponge into Sponge, Clay Balls into Bricks, and Rotten Flesh into Rotten Flesh Jerky. It operates without fuel and processes items over time, making it a useful passive workstation for players who accumulate lots of mob drops.

Tool Modification Table

The Tool Modification Table handles upgrade conversions. Using a Saltpeter Matchbox and a Stick creates 4 Torches. Smithing Templates can be duplicated by combining them with Shears. This workstation is critical for maintaining a supply of Smithing Templates for upgrading Thermal Springstone tools into the Starfire tier.

Geyser

The Abyssal Geyser is found in The Abyss biome. It converts Grimstone into Voidstone (2 per 1), Skeleton Skulls into Wither Skeleton Skulls, and White Dye into Black Dye. These conversions are passive using the natural gas vents; items placed in range are processed automatically.

Magic System: Mana Crystals and Spells

Eternal Starlight includes a spell system centered on Mana Crystals and Spell Crests. A Mana Crystal is crafted by combining all six elemental crystals: Terra Crystal, Wind Crystal, Water Crystal, Lunar Crystal, Blaze Crystal, and Light Crystal. Each elemental crystal is crafted using Red Starlight Crystal Shards (harvested in the Crystallized Desert) combined with a biome-specific ingredient.

Spell Crests are reward items dropped by bosses or obtained through specific progression steps. The Blazing Beam Crest drops from the Starlight Golem. To cast the Blazing Beam spell, hold the Orb of Prophecy in your main hand, keep a Blaze Crystal in your inventory as fuel, and right-click to charge and release. The beam functions similarly to the Golem's own light beam attack and can destroy nearly any mob.

Additional spells are tied to other crests with specific crystal requirements, but most are still in active development. Swap between active spells using the I key (rebindable). The system is expected to expand significantly in future updates, so collect all crystal types early.

Building Blocks and Decoration

The dimension adds over 200 decorative blocks. Seven wood types provide full vanilla-equivalent sets: Lunar, Northland, Banyin, Scarlet, Torreya, Jinglestem, and Cradlewood, each with planks, logs, slabs, stairs, doors, trapdoors, signs, and boats. Stone variants include Grimstone, Voidstone, Radianite, Thermal Springstone, Flare Bricks, Stellagmite, and Dusted Bricks, all with slab, stair, and wall forms.

Golem Steel blocks have an oxidation system like Copper: they can be waxed with Honeycomb or Raw Amaramber to lock their appearance. Glowing variants of Grimstone and Voidstone emit light passively. Torreya Tiles combine Torreya Logs and Amaramber Ingots into a premium decorative floor material. Starlit Paintings are crafted using Yeti Fur and function identically to vanilla paintings.

Food and Survival

The dimension has multiple food sources suited to different playstyles. Cooked Aurora Deer Steak from the Permafrost biome provides high saturation and is renewable through breeding with Abyssal Fruit. Shadow Snail Pie and Shadow Escargot are crafted from Shadow Snail Meat and provide varied nutrition. Crinoa Porridge is a simple food made from three Crinoa berries and a Bowl.

Pungency Fruit is edible but causes negative stomach effects. It is primarily a weapon ingredient rather than a food source. Bouldershroom Stew combines the dimension's mushroom with Glowing Mushroom in a Bowl for a moderate food item. Rookfish Skewers made from three Cooked Rookfish on Sticks provide a portable food item in stacks of three.