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Requires Fabric API -- Requires owo-lib -- Requires Fabric Language Kotlin
Derelict
This mod focuses on things that are inaccessible, forgotten and taken over by nature.
It also helps create such builds, with the carefully crafted selection of blocks and tools.
Currently, it only adds decorative blocks and the Waxing Staff and Aging Staff. This is only the beginning :)
Tip
Use the Aging Staff on a vanilla light source (Redstone Lamp, Sea Lantern, Jack o'Lantern, Lantern or Soul Lantern) to turn it into a flickering version of itself.
Configuration
Two config files: derelict.json5 and derelict-client.json5 are provided.
Every option is explained inside the config files, above the corresponding fields.
You can tweak:
- The behavior of flickering lights (prioritized for either performance, looks or a custom resource pack)
- The appearance of the waxed block indicator (or disable it)
- The in-world and in-gui tips when holding a Honeycomb, Waxing Staff or Aging Staff
Future plans
- custom abandoned biomes and structures
- many challenging mobs and bosses
- tons of new building blocks
- more tools, weapons and other fun items
- possibly a built-in Resource Pack for arachnophobes :)
All Versions
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[2.1.0] derelict-2.1.0+1.21.1
by mim1q on Oct 14, 2026
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# Derelict 2.1.0
## Bugfixes
## Bugfixes
- Jumping Spiders should no longer spawn at high light levels
- Derelict now uses TerraBlender (which has to be additionally installed) instead of Biolith
- This fixes a crash when used with Sinytra Connector
- As a side effect, this makes the Spider Caves larger and more uniformly distributed
- added missing lang
[2.1.0] derelict-1.20.1-2.1.0
by mim1q on Oct 14, 2026
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# Derelict 2.1.0
## Bugfixes
## Bugfixes
- Jumping Spiders should no longer spawn at high light levels
- Derelict now uses TerraBlender (which has to be additionally installed) instead of Biolith
- This fixes a crash when used with Sinytra Connector
- As a side effect, this makes the Spider Caves larger and more uniformly distributed
- added missing lang
[2.0.0] derelict-1.20.1-2.0.0
by mim1q on Oct 14, 2026
Download
# Derelict 2.0.0
## New biome - the Spider Caves
## Mobs
Some of the spiders (Arachne, Net Caster and Daddy Long Legs) use a custom-made leg system that makes them even
creepier!
### Jumping Spiders
### Spiny Spiders
### Charming Spiders
### Web Caster
### Daddy Long Legs
## Arachne Boss
### Spawning
### Attacks
### Drops
## Blocks
### Spider Eggs
## Items and Gear
### Netwalkers
### Arachnicannon
### Spider Silk Bola
## Webbed effect
- This is a beta release! Please backup your world before trying out the mod and report any issues you find!**
## New biome - the Spider Caves
- Spawn commonly in the overworld
- Contains many spider-made structures, hanging cobwebs, spider molts, eggs and a new stone type - Arachnite
- Rarely spawns the Spider Mother's Lair structure - a boss arena
- A little spider structure also spawns above the ground. It contains a map to the Spider Mother's Lair
## Mobs
Some of the spiders (Arachne, Net Caster and Daddy Long Legs) use a custom-made leg system that makes them even
creepier!
### Jumping Spiders
- Spawn everywhere normal spiders do, but twice as rarely
- Leap at the player
### Spiny Spiders
- Spawn in Spider Caves and Crimson Forest
- Explode when the players get close, covering them in a web
### Charming Spiders
- Spawn in Spider Caves and Warped Forests
- Cute fellas, may dance if you provide some music
- Not yet fully implemented behavior-wise
### Web Caster
- Exclusive to the Spider Caves
- Has more HP, is aggressive, and tries to catch you in its web
- Sometimes drops a Spider Silk Gland
### Daddy Long Legs
- Creative-only for now
## Arachne Boss
- The Huge Spider Mother
### Spawning
- Her Egg spawns in the Spider Mother's Lair inside the Spider Caves
- Punch the Arachne Egg three times to release her
- You can configure an advancement necessary to break the egg. If set, it'll warn the player that they're too weak
- The Egg regenerates an hour after defeating the boss. This can also be tweaked or turned off in the config.
### Attacks
- Jumps towards her target, exploding on impact
- Repeatedly punches her front legs into the ground, producing short-ranged, but powerful shockwaves
- Shoots a sticky web
- Has a chance to grab her victim in her fangs, poisoning them if they don't free themselves quickly enough
- Spawns a bunch of spiders from the eggs on her back
- After certain HP thresholds, Arachne becomes bigger. She summons a small army of spiders, and her attacks get slightly
### Drops
- A large amount of regular spider drops, some Spider Silk Glands and Spider Pheromone Glands
## Blocks
- Arachnite stone set
- Spider Silk. See-through but solid block that functions similar to cobwebs
- Wall Cobwebs, climbable Spider Silk strands
- Decorative Spider Molts
### Spider Eggs
- decorative Spider Egg Blocks, Spider Eggs and Spider Egg Clusters
- functional Spider Eggs. Turn into a given spider monster when a player gets close
## Items and Gear
- Crafting Ingredients: Spider Molt, Spider Pheromone Gland, Spider Silk Gland
### Netwalkers
- A pair of leggings that lets you walk on webs and through webs!
### Arachnicannon
- A spider carcass turned into a weapon. Right-click on Spider Eggs in the world to load them into the weapon, then
### Spider Silk Bola
- Throw on a mob to cover them in sticky cobweb, preventing them from moving
## Webbed effect
- When applied, the mob is covered in a sticky cobweb. This level goes down from level 3 -> 1 each time it "ends", and
- When any level is applied, it prevents the mob from moving (except by jumping)
- Cannot be removed with milk
[1.1.1] derelict-1.20.1-1.1.1
by mim1q on Oct 14, 2026
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# Derelict 1.1.1
Patch: Fixed crash on startup
# Blocks
### Cobwebs with Spiders
### Flickering Lights
Added flickering and extinguished variants of the following blocks:
### Noctisteel
All changes below apply for all oxidation levels of the waxed and unwaxed Noctisteel blocks.
Tweaked some Noctisteel textures
## Spiderling - new entity
A tiny spider that has a 10% chance (configurable) to spawn from a dying Spider or Cave Spider. They:
## Particles
Completely overhauled tiny spider particles to make them even more crawly and creepy!
## Compatibility
Added EMI and REI recipe displays for:
## Bugfixes
## Translations
## Technical
Patch: Fixed crash on startup
# Blocks
### Cobwebs with Spiders
- Removed both variants of Cobwebs with Spiders in favor of the new Spiderling Entity
### Flickering Lights
Added flickering and extinguished variants of the following blocks:
- Ochre Froglight
- Verdant Froglight
- Pearlescent Froglight
- Glowstone
- Shroomlight
- End Rod
### Noctisteel
All changes below apply for all oxidation levels of the waxed and unwaxed Noctisteel blocks.
- Removed Noctisteel Beam Pile block
- Changed Nocticteel Beam block to fit better in Minecraft's style
- Noctisteel Grates are now full blocks
- Added Noctisteel Trapdoors
Tweaked some Noctisteel textures
## Spiderling - new entity
A tiny spider that has a 10% chance (configurable) to spawn from a dying Spider or Cave Spider. They:
- Are hostile to players,
- Have 1 heart of health,
- Can be collected into a bucket, and placed on the ground, or hanging from a ceiling as a decoration,
- When hanging as a decoration, will not despawn and will be immune to damage
## Particles
Completely overhauled tiny spider particles to make them even more crawly and creepy!
## Compatibility
Added EMI and REI recipe displays for:
- Waxing blocks with the Waxing Staff
- Aging blocks with the Aging Staff
## Bugfixes
- Fixed broken creative tab background
- Fixed some lighting issues with Smoldering Embers
## Translations
- Added Polish translation by me!
## Technical
- Derelict now uses my library, [Gimm1q](https://github.com/mim1q/gimm1q)
- Changed a few block and item IDs, so if you used these, they might be missing from your world after updating
- Updated the license. Source code is still under MIT, but assets such as textures, models etc. are now All Rights Reserved
[1.0.1] derelict-1.20.1-1.0.1
by mim1q on Oct 14, 2026
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# Derelict 1.0.1
## A few small but necessary bugfixes:
## Language
## A few small but necessary bugfixes:
- Fixed missing drops and recipes
- Noctisteel, Fancy Cobwebs, Lanterns can now be quickly broken with their respective tools
## Language
- Russian translation, thanks to [Tefnya](https://github.com/Tefnya)!
- A few consistency fixes in the English translation
- rusted -> oxidized,
- broken -> extinguished
