Mythblock ยท Player Guide
Getting Started
Quickstart
Join the server
Create your island
Your first block
Link your Discord
Rules
Your Island
Phases & evolutions
Workbench & recipes
Members & coop
Bank, upgrades & level
Warps & visits
Minions
Composter
Spawners
Breaker tools
Lucky Block
Island events
Economy
Coins & Crystals
Pay & balance
Coupons
Ranks Passes
Cosmetic ranks
Progression ranks
Perks
Passes & Battle Pass
Quests Progression
Quests
Daily & weekly tasks
Achievements
Bounties
Achievement token shop
Crates Rewards
Crates
Pouches
Keys & Key Shop
Voting
Vote sites
Rewards & streaks
Vote Party
Season
Current season
Leaderboard & prizes
Mall & Season Shop
Discord
Link your account
Slash commands
Rewards & color roles
Referrals
Your data (GDPR)
Store Purchases
Store, delivery & redemption
Reference
All commands
All menus
Essentials commands
All systems
Message catalog
Help Support
Tickets
Contact & support
Changelog
Roadmap
TrademarkTrademarkTrademarkTrademark
Ctrl k
Search...
Start building
Sign up
Mythblock ยท Player Guide
Getting Started
Quickstart
Join the server
Create your island
Your first block
Link your Discord
Rules
Your Island
Phases & evolutions
Workbench & recipes
Members & coop
Bank, upgrades & level
Warps & visits
Minions
Composter
Spawners
Breaker tools
Lucky Block
Island events
Economy
Coins & Crystals
Pay & balance
Coupons
Ranks Passes
Cosmetic ranks
Progression ranks
Perks
Passes & Battle Pass
Quests Progression
Quests
Daily & weekly tasks
Achievements
Bounties
Achievement token shop
Crates Rewards
Crates
Pouches
Keys & Key Shop
Voting
Vote sites
Rewards & streaks
Vote Party
Season
Current season
Leaderboard & prizes
Mall & Season Shop
Discord
Link your account
Slash commands
Rewards & color roles
Referrals
Your data (GDPR)
Store Purchases
Store, delivery & redemption
Reference
All commands
All menus
Essentials commands
All systems
Message catalog
Help Support
Tickets
Contact & support
Changelog
Roadmap
TrademarkTrademark
Launch your docs with Once UI
Products
Once UI
Aveiro Portfolio
Aveiro Store
Aveiro Docs
Aveiro Bio
Resources
About us
Terms of Use
Privacy Policy
License Agreement
Social
Twitter
Built with Aveiro

Composter

Turn organic waste into building blocks. Tiers, recipes, upgrade path, and mechanics.
Updated 11d ago
MinionsAutomate resource gathering with 33 minion types across 7 families, upgradeable to Tier 11.
Spawners
Capture mob spawners with the Spawner Breaker. Tiers, recipes, gamble mechanics, and pity system.
The Composter is a placeable machine that converts organic waste into cheap terrain blocks (dirt, sand, gravel, clay, mud). Feed it compostable items, fill the meter, and collect the output. It is economically safe by design: output is terrain only.
In short
Craft a Composter at the 5x5 Workbench and feed it organic items to produce terrain blocks. Upgrade through 5 tiers to lower the fill threshold and increase batch output.

How it works

  • Craft a Tier 1 Composter at the 5x5 Workbench.
  • Place it on your island (right-click to position).
  • Feed organic items by right-clicking the placed composter. Each item adds points to the meter.
  • When the meter fills, the composter produces a batch of terrain blocks.
  • Collect the output by right-clicking again.
You can place up to 4 composters per island.

Tiers

Higher tiers lower the fill threshold and increase batch output. Tiers 2 and 3 are upgraded directly in the composter GUI using island bank Coins. Tiers 4 and 5 require crafting at the 5x5 Workbench with Composter Upgrade Cores (obtained from crates).
Tier
Points to fill
Batch output
Upgrade method
Cost
T1203 blocksCraft at 5x5 WorkbenchMaterials only
T2174 blocksCoin upgrade in GUI125,000 Coins
T3145 blocksCoin upgrade in GUI200,000 Coins
T4126 blocksCraft at 5x5 Workbench3 Upgrade Cores + T3 Composter
T5108 blocksCraft at 5x5 Workbench3 Upgrade Cores + T4 Composter
Upgrade Cores are crate-gated
Composter Upgrade Cores drop from crates. You cannot buy them with Coins. Save them for the T4 and T5 crafts.

Tier 1 recipe (5x5 Workbench)

The T1 Composter is a shaped 5x5 recipe. Open the Workbench with /workbench and browse the Composter category.
Ingredient
Amount
Hay Block30
Copper Block4
Iron Block10
Dirt32
Bone Block12
Composter (vanilla)1
The 5x5 crafting grid unlocks automatically when your island reaches Overworld phase 5.

Tier 4 and 5 recipes

Both use a simple 5x5 pattern: 3 Composter Upgrade Cores surrounding the previous-tier Composter in the centre.
Craft
Centre slot
Surrounding
T4 ComposterT3 Composter3 Upgrade Cores
T5 ComposterT4 Composter3 Upgrade Cores

Inputs and points

Most organic items contribute 1 point each. Bulk organic blocks (hay bales, bone blocks, etc.) contribute 4 points each. Around 55 different organic items are accepted, including:
  • Seeds (wheat, melon, pumpkin, beetroot, torchflower, pitcher pod)
  • Crops (wheat, potatoes, carrots, beetroots, sugar cane, cocoa beans, sweet berries, glow berries)
  • Flowers, saplings, leaves, vines, ferns, grass
  • Kelp, sea pickles, seagrass, dripleaf, moss, hanging roots
  • Mushrooms, nether wart, chorus fruit, spore blossom
  • Rotten flesh, spider eyes, poisonous potatoes
  • Hay bales, bone blocks, dried kelp blocks (4 pts each)
Not everything composts
Non-organic items like ores, stone, wood planks, and tools are rejected. Stick to plant matter, crops, and organic junk.

Bonus rolls

Every completed batch has a chance for extra output:
Roll
Chance
Effect
Bonus roll15%+50% output on that batch
Rare drop10%A rare terrain block added to the output

Commands

Action
Command
Open the composter GUI`/island composter`
Show the hopper blueprint`/island composter blueprint`
The blueprint overlay shows you where to place hoppers around the composter for automated input feeding and output collection.

Related achievements

Achievement
Requirement
Reward
Green ThumbCraft your first Composter (T1)150 XP + 1,500 Coins
Next, learn how to capture mob spawners with the Spawner Breaker.
Spawners