Last War Tech Tree Guide: How to Prioritize Alliance Duel and T10

To progress efficiently through tech research in Last War, max out the Alliance Duel research tree before committing your resources to the Units tree for Tier 10 (T10) troops. Alliance Duel research increases your daily event point multipliers, securing the recurring Courage Medal income necessary to pay for endgame tech nodes. Once Alliance Duel is finished, direct your gold, speed-ups, and Tech Center queue exclusively toward the prerequisite nodes needed to unlock T10 units.

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Why Max Alliance Duel Before Combat Trees

Rushing combat trees like Special Forces before finishing Alliance Duel leads directly to Courage Medal deficits in the late game. Courage Medals cannot be farmed infinitely through standard map activities; your primary recurring source is the daily Alliance Duel reward track.

Completing the Alliance Duel tree provides high percentage multipliers for all daily Alliance VS event tasks. These multipliers drastically lower the resource and stamina costs required to hit the ninth individual milestone chest each day. Consistently clearing all nine chests provides diamonds, recruitment tickets, speed-ups, and the Courage Medals needed to finance higher-tier research nodes.

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Units Tree Prerequisites for Tier 10 Troops

Unlocking T10 soldiers shifts base combat capabilities significantly across PvE and PvP. Accessing these nodes requires clearing strict structural and node prerequisites within the Units tree.

Both your Headquarters and Tech Center must reach level 30 before you can start the final research branches, and fielding each unit type requires a level 30 training facility. Because the final nodes require multi-week research queues and hundreds of millions of gold, clear all prerequisite stat nodes methodically without splitting focus into unrelated side trees.

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Managing Courage Medals: Units vs. Special Forces

Mid-game progression often creates a dilemma between investing Courage Medals in the Special Forces tree or saving them for Units. While Special Forces grants immediate squad buffs such as increased attack, defense, and damage mitigation, overinvesting early delays T10 access.

T10 soldiers fundamentally outperform T9 squads due to superior base attributes, lethality, and survivability. Splitting Courage Medals evenly between both trees slows progress across the board.

• The Priority Rule: Invest only the minimum medals necessary in Special Forces to stay functional in daily combat, then bank all remaining Courage Medals to clear the entry barriers for T10 in the Units tree.
• The Pivot: Once T10 units are unlocked, direct all surplus Courage Medals back into finishing the Special Forces tree.

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Gold Management and Research Timing

Gold becomes the primary operational bottleneck during the push to T10. Food and iron accumulate reliably from production and alliance chests, but late-stage Units research requires massive gold reserves.

1. Save Resource Chests: Avoid opening universal and gold resource chests for minor upgrades. Keep them banked until you are ready to start high-cost prerequisite nodes.
2. Align with Duel Research Day: Time your longest research queues to start on the designated Tech/Research day of the weekly Alliance Duel. Starting multi-week projects during this window earns millions of event points, unlocking top-tier chests that return medals and speed-ups.
3. Cap Alliance Helps First: Wait until all alliance help requests are completely filled before applying any research speed-ups, maximizing free time reductions on multi-week timers.

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Tech Roadmap After Unlocking T10

Once your Tech Center unlocks T10 soldiers and Alliance Duel remains maxed, pivot fully toward squad depth and combat efficiency:

• Finish Special Forces: Complete high-tier nodes that expand march size, squad damage reduction, and class-specific combat stats for your primary squad.
• Upgrade Garage Trees: Research Garage II and Garage III to expand march capacity and combat viability for your secondary and tertiary squads, ensuring alliance depth for Capital Wars and server battles.