Minecraft skyblock plugin generator for your own island rules

For players, skyblock is a small island, a tree and an empty sky. For the plugin, it is one shared world where hundreds of islands must never overlap, never be griefed and never lose data after a restart. A good custom skyblock plugin gets those invisible parts right.

List the mechanics you need before writing your prompt. The usual core:

A Bukkit plugin can provide a ChunkGenerator that returns empty chunks; the server uses it when you name the plugin as the generator of that world in bukkit.yml. Alternatively, the plugin creates the skyblock world itself on startup. Say which you prefer.

Islands then sit on a grid, for example 400 blocks between centers, with a protected radius under half that distance so borders never touch. The plugin stores the next free slot and each owner's slot, so a reset island can keep its place or get a fresh one.

The starter island is usually your own schematic. WorldEdit is resolved automatically at compile time, so you can ask for island.schem to be pasted at the slot center. It must still be installed on your server; to avoid it, ask for the island to be placed block by block in code.

Island level is where skyblock servers often lose performance: counting every block of a large island in one pass on the main thread freezes the game. Ask for block values in config.yml, a scan spread over several ticks, a cached result and a cooldown.

Challenges give players goals, with items, console commands or money as rewards. Vault, the usual bridge to your economy plugin, is handled at compile time, and PlaceholderAPI can show the island level on your scoreboard.

Generator upgrades add a simple progression loop: when cobblestone forms on an island, the plugin swaps it for an ore at chances set by the island's tier.

OneBlock replaces the starter island with a single block. Each time it breaks, it returns as another block from the current phase: dirt and logs, then stone and ores, then nether and end materials. Phases unlock after a number of breaks, each with its own weighted blocks, chest loot and mobs.

Details matter. The break event finishes after your code runs, so the new block must be placed one tick later; the break counter must be saved; mobs should spawn only if the space above is free. Put these rules in your prompt and the plugin handles them from the first build.

Keep the numbers that shape your server in config.yml, so you can tune them without regenerating anything:

Before launch, start the plugin on a test server from the editor and check home, protection and reset. If something is off, describe the fix in one sentence and the AI updates the code and recompiles.