UltimateImprovments

Ultimate Improvments

A modular, feature-packed Minecraft plugin for Paper 26.2+ (Java 26)

Author: rizer001 Server: Paper 26.2+ Database: SQLite Build: Gradle (JDK 26)

Ultimate Improvments is a modular plugin that turns a vanilla server into a full-featured gameplay experience. It's one .jar with everything inside: authentication, an energy network, a fusion reactor, radiation, custom items and enchantments, an achievement tree, turrets, protection systems, and 80+ toggleable modules.

Full documentation: see GUIDE.md — commands, items, enchantments, achievements, configuration and more.

What can you do with it?

Security & Administration

• Auth — registration/login via Anvil GUI, Argon2id hashing, GitHub 2FA, sessions
• Punishments — ban/mute/kick/warn with temporary and permanent durations, IP/HW scopes, fully customizable MiniMessage screens
• Whitelist / Blacklist — custom, database-driven, independent of the vanilla one
• Anti-cheat — freeze/check players, packet guard, redstone anti-lag, bot protection
• /ui invsee / /ui endersee — view and edit player inventories even when they're offline (reads/writes the .dat file with automatic backups)
• Report system, sudo mode, command-block tracker, creative item validation

Technology & Machinery

• Dark Fusion Reactor — multi-block structure with temperature/pressure/integrity simulation, wear, meltdown
• Energy network — cables, batteries, generators, electric furnace, energy workbench
• Custom crafting — 20+ craftable items (only craftable in a Crafter, preview in the vanilla workbench)
• Particle accelerator, wireless redstone, magnet & lightning structures

Custom Items

Custom Enchantments (13)

Attack AoE, Auto Smelt, Vein Miner, TreeCapitator, Flight, Magnet, Igniting, Levitation, Self-Destruct, Degradation, Repairing, Item Stealing — all with levels up to 255.

Achievements (35+)

A full custom achievement tree in the ui: namespace: reach the world height limit, break bedrock, deal 1000 damage with a mace, stay online during a server overload — and a few "meme" ones. Includes timed challenges (/ui advancement start woodcutter|teleport).

Turrets

End-crystal turrets: configure via Shift+RMB, whitelist/blacklist targets, fires damaging beams with line-of-sight checks.

Other Highlights

• Custom chat (per-group/per-world formats, pings), tab, scoreboard (gradients), bossbar, MOTD
• Item integrity (durability) system with anvil repair and XP mending
• Radiation system, homes, notes, spawn, RTP, dimension teleportation
• Power management with countdown bossbar, suicide command, maintenance mode
• Auto-broadcast with conditions, update checker with JAR auto-replace, death logging

Quick Install

1. Download the .jar from Releases Jars are in archive.
2. Drop it into the plugins/ folder
3. Restart the server twice (first run installs the datapack, second run activates it)

Requires Paper 26.2+ (or its fork like Purpur). Not compatible with Spigot/Bukkit.

Modular Architecture

Every feature is a module that can be toggled on/off at runtime via /ui modules. If one module fails, the rest keep running. Essential modules (Core, Database, Auth, Crafting, Energy, Reactor, ...) are always on; the rest are optional.

Addon system

UI-Core is the main (mandatory) part of UltimateImprovments. Everything else — the bundled UI-* plugins and any third-party plugin — is an addon. A plugin is recognized as an addon by a marker in its plugin.yml:

addon-for: UI-Core
# or a list: addon-for: [UI-Core, Other-Host]

Addons must also declare depend: [UI-Core] so they load after Core. Core discovers addons automatically (plugin enable events + a startup pass), keeps a registry, and /ui addons shows every addon with its status:

/ui addons

Requires the ui.command.addons permission (included in ui.admin / ui.*).

Commands

All commands start with /ui. The full list is in the in-game help (/ui help, paginated) and in GUIDE.md. A few examples:

/ui help                  — command list (paginated)
/ui modules               — toggle modules
/ui punish <nick> ban ... — punishments
/ui invsee <nick>         — offline inventory editing
/ui turret                — turret configuration
/ui advancement start     — start a timed challenge
/ui power off|reboot      — server power management
/ui uuid                  — get player UUID

Permissions

Building from Source

git clone https://github.com/0softwaredevelopment0/UltimateImprovments.git
cd UltimateImprovments
./gradlew build

The built JAR will be in build/libs/UltimateImprovments-<version>.jar. Requires JDK 26+.

License

GNU AGPL v3 — see LICENSE. Free use, modification, and distribution allowed.