Last Shelter: War Z Level 13 Headquarters Upgrade Guide

To upgrade your Headquarters to level 13 in Last Shelter: War Z, you must first upgrade your Wall to match your current Headquarters level. Reaching level 13 unlocks higher structural capacity and resource demands, requiring balanced building prerequisites, strict resource security, and continuous builder optimization.

Building Prerequisites and Construction Order

The Wall serves as the primary structural bottleneck for your Headquarters progression. You cannot initiate the Headquarters level 13 construction timer until your Wall upgrade finishes.

Follow this priority order when planning base upgrades leading to level 13:

Wall: Upgrade the Wall immediately whenever your Headquarters level increases so it never delays your next major command upgrade.
Resource Generators: Upgrade Farms and Fuel Wells to keep them within two levels of your Headquarters. This ensures your passive income keeps pace with escalating construction costs.
Infrastructure Buildings: Use open builder slots on supporting structures like the Power Plant and Fuel Storage to prevent resource overflow and energy shortages.

Resource Protection and Inventory Management

Fuel and food requirements increase sharply at level 13. Exposing large amounts of raw resources in your base makes you a target for enemy raids.

Keep Resource Packs Sealed: Leave inventory-based resource items inside your backpack until the exact moment you launch the Headquarters upgrade. Resources kept in your inventory cannot be stolen during base attacks.
Maintain Active Shields: Activate a peace shield before accumulating open resources near the upgrade threshold if your base sits near hostile players.
Fund Subsequent Operations: Avoid spending your entire resource stash on the Headquarters alone. Reserve sufficient fuel and food to sustain tech research and troop training immediately after construction starts.

Queue Management and Research Priorities

Upgrades at level 13 take significantly longer to complete. Stagger your secondary construction and research projects to eliminate downtime across your base.

Focus Area	Primary Action	Key Benefit
Dual Queues	Pair the long Headquarters timer with shorter secondary builds like Fuel Storage or Power Plants.	Keeps construction teams active without stalling core base development.
Research Lab	Prioritize technologies that boost construction speed and resource collection rates.	Permanently reduces construction time and cost scaling for future levels.
Event Timing	Hold off on starting or finishing major construction until daily base power events begin.	Turns structural upgrades into event rewards, speed-ups, and extra development points.