1. BentoboxExpandable Minecraft server plugin for island-type games like SkyBlock or AcidIsland.
3. BSkyBlockBSkyBlock add-on for BentoBox (Discord link: https://discordapp.com/invite/T5HxmvK)
4. LevelAdd on for BentoBox to calculate island levels for BSkyBlock and AcidIsland. Please read the Wiki!