AcidIsland - Toxic SkyBlock

☠️ AcidIsland — SkyBlock, But the Ocean Wants You Dead

AcidIsland replaces SkyBlock's void with an endless ocean of acid that damages anything it touches. You start on a small island surrounded by it. Every block you gather, every trip to a neighbour's island, every fall off your own build happens over water that burns.

AcidIsland is a game mode for BentoBox, so BentoBox must be installed first.

🎮 What Makes AcidIsland Different from SkyBlock?

• Acid ocean — water damages players, mobs and items, with configurable damage and potion effects
• Acid rain — optional rainfall (and snow) that burns anyone caught in the open
• Boat travel — the sea is a road as well as a hazard; players can boat to each other's islands
• Falling isn't the end — it's the start of a rescue
• Armour matters — a helmet can be set to stop acid rain, a full set to stop the acid itself

💧 Purified Water

Water drawn from the acid sea hurts to drink, so clean water has to be made:

• collect rain in a cauldron fed by a dripstone stalactite
• smelt a water bottle — or a water bucket — in a furnace
• brew water bottles with coal in a brewing stand

Drinking purified water heals instead of harming. The heal amount, and whether the mechanic runs in the Nether and the End, are configurable.

🌋 Sulfur Seas (Minecraft 26.2 and later)

On servers new enough to have them, AcidIsland uses the game's own toxic water:

• the ocean is sulfur pool water in the sulfur caves biome — acid-green water under green fog
• sulfur vents generate below the surface, bubbling and gassing before they erupt as geysers
• the ocean floor is varied terrain, and vanilla structures such as trial chambers generate buried beneath it, so there is a reason to dig down
• a Sulfur Spring Refuge starter island joins the classic blueprints

Older servers quietly fall back to normal water and a warm ocean biome. Nothing breaks.

🔥 Geyser Offerings (Minecraft 26.2 and later)

Throw items into the water around a sulfur vent and it swallows them with a hiss. Floating items drift in on their own, so a throw doesn't have to be accurate. A few seconds later the vent erupts — and pays you back.

• It transmutes rather than destroys. The vent works out what your offering was worth and hands back rewards worth about the same: a diamond comes back in gems, a stack of cobble comes back in cobble-grade tat.
• What you feed it steers what it gives. Offerings pull the reward table towards their own channel — gems, nether, mineral, forestry or husbandry — in proportion to the worth that went in.
• Named transmutations are worth learning. Magma blocks make obsidian. Iron makes gold. Bones and gunpowder make music discs — a record without a mob farm.
• Nothing is wasted. Items the acid destroys inside a vent's pool count as offerings instead of vanishing.

Admins get full control: rewards are defined in geyser-loot.yml, item worth in geyser-values.yml (which can defer to the Level addon's block values), and the config sets payout size, the exchange rate the vent trades at, the ceiling on any single reward, and whether feeding a vent provokes an early eruption. GeyserSacrificeEvent and GeyserTransmuteEvent let other plugins watch or change what happens.

⚙️ Everything Else

Teams with ranks and permissions, a large set of island protection flags for PvP and grief prevention, custom island blueprints, 24 translations, and compatibility with the whole family of BentoBox addons — Level, Challenges, Warps, Biomes, Limits and more. Free and open source.

📦 Installation

1. Install BentoBox and start the server once so it creates its folders.
2. Drop this jar into plugins/BentoBox/addons/.
3. Restart the server. Worlds and a config.yml are created.
4. Stop the server, edit config.yml, delete any worlds affected by your changes, and restart.

Requires: Paper 1.21.11+, Java 21, BentoBox 3.14.0+. The sulfur sea and geyser features need Minecraft 26.2 or later and are simply inactive on older servers.

💬 Commands

• /ai — main player command
• /ai team — team management
• /acid — admin commands

📖 Docs: docs.bentobox.world | 💬 Discord: discord.gg/BentoBoxWorld | 🐛 Issues: GitHub