Advanced Spawner — Universal Mob Foundry (UMF)

Quickstart

1. Craft the Advanced Spawner using a Crafting Table (unlock requires a Diamond in your inventory):

1. Place the spawner block anywhere in your world.
2. Interact (tap/use) with the spawner to open the Universal Mob Foundry main menu.
3. In the main menu, choose 🛒 Buy Mobs, pick a mob from the list (or use Enter Any Mob ID), and spend coins to purchase it.
4. The spawner will begin generating that mob's drops automatically. Open 📦 View Inventory to collect your loot and earn coins.
5. Spend coins on ⬆️ Upgrade Spawner to speed up production and unlock more mobs.

New players start with 1,000 coins. Collecting loot from the inventory awards bonus coins each time.

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Overview

The Universal Mob Foundry is a single placeable block that acts as an automated mob farm. Instead of building traditional mob grinders, you purchase mobs through the in-game GUI and the spawner passively accumulates their natural drops into an internal inventory. The spawner scales from Level 1 to Level 35, progressively unlocking rarer mob tiers, faster spawn rates, greater loot multipliers, and more storage slots.

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What It Adds

• 1 craftable block — the Advanced Spawner (also called Universal Mob Foundry / UMF)
• A coin currency system unique to each player
• 8 mob rarity tiers with 40+ built-in mobs, plus support for any custom mob ID
• Hopper compatibility — hoppers placed under the spawner automatically pull stored loot
• Auto-compression — eligible items compress at a 9:1 ratio into block form (e.g., 9 Iron Ingots → 1 Iron Block)

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How To Use

Main Menu

Interact with the spawner to open the main menu. It displays your current level, coin balance, active mobs, inventory slots used, and XP Bottle Loot status. Six options are available:

Buying Mobs

Open Buy Mobs to see all mobs available at your current level. Each mob shows its rarity and coin cost. Select a mob and choose a quantity to purchase. All purchased mobs contribute drops simultaneously.

• Enter Any Mob ID — costs 200 coins, lets you type any Minecraft mob identifier (e.g. minecraft:fox) to add it to the spawner. Custom mobs generate Bottle o' Enchanting loot based on their ID.

Collecting Loot

Open View Inventory to see everything stored in the spawner. Collect all items at once; doing so grants bonus coins. You can also place a hopper underneath the spawner — it will automatically pull items from storage every 8 ticks without you needing to open the menu.

Settings

The Settings menu lets you:

• Toggle XP Bottle Loot — enable or disable Bottle o' Enchanting drops for this spawner.
• Manual Loot Item Filter — individually enable or disable specific drop types. Use Enable All to restore every item including XP bottles.

Resetting

A reset option refunds coins spent on upgrades and mob purchases so you can reconfigure a spawner without losing your investment.

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Abilities And Mechanics

Spawn Speed

The spawner generates drops on a tick timer. At Level 1, a cycle takes ~100 ticks (5 seconds). At Level 35, this reduces to ~20 ticks (5× faster).

Loot Multiplier

Each loot cycle applies a multiplier to drop quantities:

• Level 1 — 1× loot
• Level 15 — ~7.5× loot
• Level 35 — ~15× loot

Storage Capacity

Auto-Compression (9:1)

When 9 of a compressible item accumulate in storage, they are automatically converted to their block form. This keeps the inventory clean for high-volume farms. Items that compress include:

XP Bottles

Every mob produces Bottle o' Enchanting loot at a low drop rate (10% base chance per cycle). The amount per drop scales with mob rarity (1–30 bottles). This can be toggled per-spawner in Settings.

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Progression And Strategy

Upgrade Costs

Each level costs 100 × 1.5^(currentLevel−1) coins. Costs rise steeply, so prioritise upgrading when you have steady income from multiple mobs.

Mob Rarity Tiers & Level Requirements

Default-tier mobs (Zombie, Skeleton, Blaze, Breeze, Warden, and others) appear in the Buy Mobs menu immediately from Level 1, even before their tier officially unlocks.

Tips

• Stack multiple mob types in one spawner — all purchased mobs generate drops simultaneously.
• Set up hoppers early so the inventory never fills up and production isn't wasted.
• Prioritise Iron Golem for early coin income — iron ingots compress to blocks and sell efficiently.
• Loot filters are useful for high-level spawners where unwanted items would otherwise fill storage slots and block valuable drops.
• Wither and Ender Dragon (Mythic, Level 13) offer nether stars and dragon breath respectively — some of the most valuable loot in the game.
• At Level 35, Universal mobs like Allay (amethyst shards, echo shards) and Sniffer (rare seeds) become available and cannot be obtained any other way in vanilla survival.