Description
Last Haven Bunker adds a deployable, fully furnished underground survival bunker you place with a Bunker Control Tablet (starter tablet granted on first spawn and also craftable). The bunker spawns with a reinforced shell, access shaft, command center, dorm/med bay, kitchen/workshop, storage/armory, generator, hydroponic farm, lighting, containers, crafting stations and furnaces, and is managed through the tablet’s UI to teleport back, check facility status, seal or open hatches, toggle lights, donate supplies, repair hull, heal in the med bay, and redeploy. A persistent survival loop drains power, food, and water over time (low resources degrade hull integrity), shows live bunker status to nearby players via the action-bar HUD, and requires restocking and repairs to keep your Last Haven operational across world loads.
Mod Wiki
Last Haven Bunker
Quickstart
- Get the tablet — A Bunker Control Tablet is automatically given to you the first time you spawn. If you lose it, craft another at a crafting table:


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Deploy the bunker — Hold the Bunker Control Tablet and use it (right-click / tap) to open the menu. Select Deploy Furnished Bunker. The bunker generates underground at your current position and you are teleported inside instantly.
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Manage your bunker — Use the tablet at any time to open the control menu. From there you can teleport back, check status, seal hatches, toggle lights, donate supplies, repair the hull, use the med bay, or redeploy.
Overview
Last Haven Bunker gives you a fully furnished underground survival base that you can deploy anywhere in the world with a single item. Once placed, the bunker runs a persistent survival loop — power, food, and water slowly drain over time, and neglecting them degrades your hull integrity. Keep your bunker stocked and repaired to maintain a safe haven across all play sessions.
What It Adds
- Bunker Control Tablet — The single item used to deploy, recall, and manage every aspect of the bunker.
- The Bunker — A large underground structure built from deepslate bricks containing:
- Reinforced shell & access shaft
- Command center
- Dormitory / med bay
- Kitchen / workshop
- Storage / armory
- Generator room
- Hydroponic wheat farm with irrigation and a composter
- Full lighting, containers, crafting stations, and furnaces
- Action-bar HUD — Live bunker status (power, food, water, integrity) visible to nearby players without opening the menu.
How To Use
Opening the Control Menu
Hold the Bunker Control Tablet and use it to open the Last Haven Bunker menu. The menu header always shows your current facility status.
Menu Options
| Option | What it does |
|---|---|
| Deploy Furnished Bunker | Generates a brand-new bunker at your feet and teleports you inside. Only available before a bunker exists. |
| Teleport to Bunker | Instantly warps you to the bunker interior. Must be in the same dimension as the bunker. |
| Facility Status | Displays current power, food, water, and hull integrity levels. |
| Seal / Open Hatch | Toggles the surface access hatch open or closed. |
| Toggle Lights | Switches bunker lighting on (normal) or off (power-saving dark mode). |
| Donate Supplies | Consumes items from your inventory to restore resources (see table below). |
| Repair Hull | Spends iron ingots to restore hull integrity. |
| Med Bay | Triggers a healing cycle using power and water reserves. |
| Redeploy | Destroys the current bunker anchor and builds a fresh bunker at your current position. Requires confirmation. |
Abilities And Mechanics
Resource Drain
Every few seconds the bunker consumes a small amount of power, food, and water automatically. All three resources have a maximum of 100. If any resource runs low, hull integrity begins to degrade.
Donating Supplies
Open the tablet menu and select Donate Supplies while carrying the required items:
| Item | Quantity consumed | Resource restored |
|---|---|---|
| Coal | 8 | +35 Power |
| Wheat | 12 | +35 Food |
| Kelp | 12 | +35 Water |
You can donate multiple resource types in a single action if you carry all the items at once.
Repairing the Hull
Select Repair Hull from the menu while carrying 6 iron ingots. Each repair restores +30 hull integrity.
Med Bay Healing
Select Med Bay from the menu. Requires at least 10 power and 10 water. On success, you receive Regeneration II for 12 seconds and Saturation briefly. Both resources are reduced by 10.
Sealing the Hatch
Use Seal / Open Hatch to lock down the surface entrance. Seal up before logging off or venturing out to protect the interior.
Lights
Toggling lights off puts the bunker into power-saving dark mode. Toggle them back on to restore normal illumination.
HUD
While near your bunker, the current status (power / food / water / integrity) is displayed on your action bar so you can monitor resources at a glance without opening the menu.
Progression And Strategy
- First session — Deploy your bunker immediately after spawning to secure a safe underground base. Gather coal, wheat, kelp, and iron before your first night.
- Restocking routine — Resources drain continuously. Keeping a stack of coal, wheat, and kelp on hand lets you quickly top up all three resource pools in one trip to the tablet.
- Hull integrity — This is the hardest resource to recover (requires iron ingots). Prioritise keeping power, food, and water above critical levels so integrity never drops in the first place.
- Med bay — A reliable emergency heal if you return to the bunker injured, but it costs power and water, so don't spam it when resources are low.
- Redeployment — Use Redeploy if you want to move your base to a new location. Note it overwrites your previous bunker anchor permanently.
- Hatch discipline — Sealing the hatch when you leave keeps the interior secure and is good practice for immersive survival play.
How to install
Download the mod and follow the step-by-step installation guide.
This mod is licensed under the CreativeMode Mods License.