Upgrading to Headquarter Level 33 in Last Z: Survival Shooter

To start preparing for Headquarter (HQ) Level 33 in Last Z: Survival Shooter, select your Headquarter building and tap Upgrade to inspect the required dependency list. Complete these prerequisite building upgrades first while continuously accumulating stockpiles of Food, Wood, Steel, and Gas.

Clearing Building Prerequisites

The game requires specific surrounding structures to reach matching level tiers before HQ 33 construction can begin.

• Audit Required Infrastructure: Check the HQ upgrade window to view exact level requirements for dependent buildings, including the Radar, Hospital, and training camps.
• Upgrade Prerequisites First: Complete all required sub-buildings in sequence so the main HQ upgrade button activates immediately once your resource totals are met.
• Maintain Secondary Structures: Keep secondary resource production buildings leveled up to prevent unexpected dependencies from blocking your main upgrade path.

Stockpiling Resources and Researching Economy

Reaching HQ 33 requires resource amounts that exceed standard daily production limits.

• Stockpile Key Materials: Focus gathering efforts on Food, Wood, Steel, and Gas long before initiating the upgrade.
• Boost Gathering Tech: Complete Research Center nodes dedicated to internal production rates and map gathering speed to build a stable resource surplus.
• Maintain Map Marches: Keep gathering marches deployed on the world map continuously to prevent idle builder downtime caused by resource shortages.

Timing Speed-Ups and Buffs

Because high-tier construction spans multiple days, natural time progression is inefficient for this upgrade.

• Reserve Long Speed-Ups: Save long-duration construction speed-ups specifically for the HQ 33 project rather than using them on lower-tier structures.
• Activate Speed Buffs: Check for active alliance technology bonuses and completed research speed buffs before applying speed-up items.
• Apply Items incrementally: Use speed-up items in segments rather than all at once to maintain flexibility for alliance help events or construction milestones.

Managing Base Defense and Tech Progress

Hoarding resources for a major upgrade leaves your base vulnerable to attack during the transition period.

• Maintain Research Queues: Keep the Research Center active on technologies that lower construction costs or expand march capacity.
• Upgrade Hospitals: Keep Hospital capacity maxed out so that any incoming attacks during resource hoarding result in recoverable injuries rather than permanent troop losses.
• Coordinate Alliance Reinforcements: Stay in an active alliance to gain construction help calls and defense reinforcements while your resources are committed to building projects.