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UltimateVirtualSpawner

Virtual mob spawners for Minecraft servers. A managed spawner never spawns a real mob — every cycle it rolls its drop table and deposits the result straight into its own virtual storage, so a 100,000-stack spawner farm costs the server nothing in entities.

Supported servers

Escape hatches live in config.yml under COMPATIBILITY:

• STRICT: false — a version string that cannot be parsed is allowed through with a warning instead of blocking start-up.
• ENABLED: false — skip the gate entirely and start on any server. Unsupported, no guarantees.

Features

• Stackable spawners — up to MAX_STACK_PER_BLOCK in a single block, sneak-place and sneak-break to move whole stacks, /spawner split to break a stack apart.
• Virtual storage — a real, clickable container GUI per spawner. Left/right/shift click all behave like vanilla, plus shift-right to toggle a material's filter.
• Drop filters — per-spawner, per-drop toggles with enable-all / disable-all shortcuts.
• XP generation — spawners accumulate XP alongside items, claimed from the main menu.
• Built-in economy — balances stored in this plugin's own database, with /balance, /baltop, /pay and /eco. No economy plugin required; optionally published to Vault so other plugins share the same money.
• Selling — sell stored loot for money, with a confirmation screen showing the payout, and per-permission sell multipliers.
• Hopper extraction — optionally pull stored loot into a hopper under the spawner.
• Anti-ESP — spawners outside a player's reveal radius (or behind blocks) are sent as camouflage blocks, so X-ray clients cannot map other players' farms.
• Admin panel — browse every managed spawner per world and teleport to it.
• Folia-native — all world access goes through the region scheduler; no main-thread assumptions.

Screenshots

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Commands

All under /spawner (aliases /spawners, /uvs, /virtualspawner).

Economy

Active while ECONOMY.PROVIDER is INTERNAL (or AUTO with no external economy). With an external economy in charge, these defer to the plugin that owns money.

Amounts accept K/M/B/T suffixes: /eco give Steve 1.5M.

Permissions

Configuration

Missing keys are back-filled from the packaged defaults on every load, so updating the plugin never wipes customised values.

Economy

Money is handled by the plugin itself. ECONOMY.PROVIDER in config.yml picks the backend:

Changing the mode needs a full server restart, not /spawner reload.

With REGISTER_WITH_VAULT: true (the default) and Vault installed, the built-in economy is published as a Vault provider — so shops, jobs and similar plugins read and write these same balances instead of the server ending up with two disconnected pots of money. Vault is not required; without it the economy simply stays internal to this plugin.

Balances are rounded to DECIMAL_PLACES on every change so repeated arithmetic cannot drift into fractions of a cent, and each player's balance is mutated under its own lock so two concurrent sells cannot interleave into a lost update.

Dependencies

Both optional:

• Vault — only needed to share the economy with other plugins, or to use an external economy via PROVIDER: VAULT. Selling works without it.
• PlaceholderAPI — registers the uvs expansion.

JDBC drivers (SQLite, MySQL) are declared as libraries in plugin.yml and downloaded by the server on first start, so the plugin jar stays small.

Placeholders

Requires PlaceholderAPI.

What are the Commands and Permissions?

Read the official documentation for a list of commands and permissions.

What if I need support?

If you need any support you can join our Discord server, so we can help you out :)

What if I find a bug?

if you find any bugs, you can report them on GitHub issues

Donation

We provide a !paypalPayPal and SocialBuzz donation link to keep supporting this project :)