Worlds

The Worlds of Imperium

Spawn — Rome

Spawn (internally world, sometimes aliased spawn, hub, or lobby) is the heart of the empire. It is a hand-built Roman city housing every NPC vendor, the crate pavilion, the bank, the Contraband merchant, the auction house lectern, the drop-party zone, and the envoy crate landing site. Resource pack delivery, the tutorial, and the /menu GUI all live here.

PvP is permanently disabled at spawn, building and breaking are blocked, and the anti-cheat is enforced at maximum sensitivity. New players land here on first join. You can return at any time with /spawn or /warp spawn.

The Public Mines

Public mines are Imperium's bread and butter. Each mine (Mine I through Mine C, plus a dedicated PVP Mine) lives in its own world generated empty by the plugin's void generator. The structure — bedrock floor, ladder shafts, ore veins, and a teleport platform — is placed by PublicMineStructureGenerator on first visit and saved so subsequent reloads preserve player edits.

Mines are rank-gated: Mine I unlocks at Rank 1, Mine X at Rank 10, Mine C at Rank 100. The /mines command opens a GUI that shows every mine, your unlock status, and teleports you on click. A world is created the instant you teleport in, registered with Multiverse automatically (so /mv list shows it), and protected with WorldGuard regions that allow block-break only inside the mine footprint.

How a Mine Resets

Each public mine resets on a configurable timer (or when its ore inventory falls below a threshold). PublicMineResetService clears the mine region and re-fills it using the mine's ore distribution, which is why mines are always fresh — you never arrive at a hollowed-out cavern. Reset broadcasts fire 10 seconds before the wipe so you have time to grab your last blocks.

The PVP Mine

The PVP Mine (PVP_Mine) is the richest mine in the empire and the only one where PvP is permanently on. It is generated as an empty void world (using the same void generator as the public mines) and then filled with the highest-value ores in the game. Getting in requires one hour of playtime — the gate stops fresh alts from farming it.

Inside the PVP Mine:

• PvP is always on — the WorldGuard region forces pvp: allowacross the entire mine.
• Combat tagging — hitting or being hit tags you for several seconds; logging out while tagged slays you in-place and broadcasts a combat-log warning.
• Flight and most commands are blocked — no /fly, /home, or /tpa while inside. Donors with the bypass perk and admins keep access.
• Safe zone — a 10-block-radius cylinder around the entrance teleport point where PvP is disabled, so you can gear up before stepping out.

See the PvP Mine article for the full block-value table, kill rewards, bounty rules, and survival tips.

The Void Generator — How Empty Worlds Get Made

Imperium uses a custom PublicMineVoidGenerator to create genuinely empty worlds. On Paper 26.2, the only reliable way to produce a true void is to return true for shouldGenerateNoise() and then fill every block with air inside generateNoise(). Returning false for everything (the old approach) lets Paper fall back to its internal noise generator and produces vanilla terrain, which is exactly what we do not want for a prison mine.

The generator also returns false for caves, decorations, mobs, structures, surface, and bedrock, and forces the biome to THE_VOID everywhere. The result is a chunk that contains nothing — perfect for the plugin to then place its own mine structure on top.

Player Cells — Your Roman Villa

Cells are rentable private plots in their own world. Each cell is yours for the rent period: build a Roman villa, store gear in chests, set a warp, invite friends, or afk in peace. Rent is paid in Denarius and renews monthly; if it expires your cell is reclaimed but items remain claimable for a grace period. See the Player Cells article for tier pricing and the full /cell command family.

Travelling Between Worlds

Every world has a canonical travel command. Most accept no arguments — just type and go. Here is the full list:

/back is universal — after any teleport, it returns you to where you were before. Pair it with /pvpmine for a quick escape if you survive long enough to type it.

Per-World Rules at a Glance

Imperium enforces different rules in different worlds. Here is what changes:

• Spawn / hub / lobby worlds — PvP off, build/break off, day locked at noon, weather frozen, mob spawning disabled.
• Public mines — PvP off, build/break restricted to the mine region, anti-cheat at full strength, /fly permitted for donors with the perk.
• PVP_Mine — PvP forced on, combat tagging on, /fly and most teleport commands blocked, 10-block safe zone at the entrance only.
• Player cells and plot world — PvP off, build/break restricted to your claimed plot, /fly permitted for donors.

World rules are enforced through a mix of WorldGuard regions, the PVPEnhancementService (which re-applies your combat style on world change and respawn), and per-world command blockers. The result is a smooth experience where you never accidentally take damage at spawn or get ambushed leaving a mine.

Tips for Getting Around

• Set a home at every world you visit. /sethome mine, /sethome pvp, /sethome cell — one click teleports you straight back.
• Use /back after PVP Mine death. If you die in the PVP Mine, /back returns you to your death point — risky but it can recover your loot before someone else does.
• Idle worlds free memory. If a mine feels like it takes a moment to load the first time, that's the structure generator placing bedrock and ores — it only happens once per world.
• Don't try to escape the PVP Mine via teleport. The command blocker is intentional and combat-tag will punish disconnects. Walk out via the safe zone instead.
• Resource-pack delivery is spawn-gated. The pack is pushed when you enter the spawn world so you never miss cosmetics while mining.