Unlocking Tier 10 (T10) troops is one of the biggest milestones in Last Z: Survival Shooter. The path to T10 isn’t quick or cheap — it requires a Level 30 Laboratory, massive amounts of speedups, resources, and hundreds of thousands of badges.
This Last Z T10 Research Guide breaks down the Unit Special Training tree, the badge and speedup requirements, and how free-to-play players can prepare without wasting time.
Last Z T10 Research Guide 2025 (Unit Special Training)
1. Requirements for T10 Research
Before you can even start Unit Special Training, you need:
- Laboratory Level 30 (mandatory).
- Large stock of speedups (each deeper node takes 1–8 days of research time by default).
- Hundreds of thousands of badges.
- Millions of resources (electricity, oil, steel, etc.).
Unlocking T10 troops will eventually require well over 1 million badges, so planning ahead is critical.
2. Unit Special Training – Key Research Nodes
The Unit Special Training tree mixes efficiency buffs with troop stats, but the real goal is the final unlock of T10 units.
Early Research (Cheaper, Entry Nodes)
Troop Attack +15% (all troop types).
Troop Defense +15% (all troop types).
Troop Training Speed +20%.
March Speed and Destruction Value (less useful, but mandatory to progress).
Costs: Starts light (~790–1,300 badges per level), then ramps up quickly.
Mid Research (Heavy Costs)
Branches into troop-specific stats: Rider Attack, Assaulter Defense, Shooter Defense, etc.
Each branch requires you to max the earlier prerequisite research before unlocking the next.
Badge Costs: Around 90k–200k just to get through these middle sections.
Late Research (Core Power Nodes)
Recharge Seal (+50% HP): The single most valuable buff in the tree. HP scales formation power far more than attack/defense.
Troop Attack/Defense (+40% total across branches).
Final T10 Unlock Node: Requires 54k badges, plus 8+ days of speedups and millions of resources.
3. Badge and Speedup Costs
From the breakdown:
Early tree (first 6–7 nodes): ~90k–150k badges.
Mid tree branches: Another ~200k–300k badges.
Recharge Seal + late nodes: ~150k–200k badges.
Final T10 unlock: 54k badges + 8–14 days of speedups.
Total Estimate:
450k–600k badges just for essential research.
Closer to 1M+ badges if you max every branch.
Hundreds of days of raw speedup time (shortened with boosts).
Guide
Since badges are the main bottleneck, you need to approach T10 carefully:
- Max Alliance Recognition First – This doubles badge rewards from Alliance Duel events, giving you thousands more badges weekly. Without this, reaching 1M+ badges is nearly impossible.
- Focus on One Troop Type – Don’t spread badges across all branches. Pick your primary troop (Assaulter, Rider, or Shooter) and max its branch first.
- Save Speedups for Event Days – Always run big research pushes during events like Age of Science (Alliance Duel Day 3) to earn points and extra rewards.
- Don’t Waste Badges on Low-Impact Research – Nodes like March Speed or minor Destruction Value are prerequisites only. Push through them, but don’t prioritize them early.
- Prepare Resources in Advance – The final T10 unlock alone costs over 1M electricity and hundreds of thousands of other resources. Stockpile before committing.
Once you unlock Unit Special Training, your main focus should be T10 research, not Siege to Siege or Peace Seal. While those trees provide solid buffs, T10 troops offer a far bigger jump in raw combat power. Post-T10, you can return to those trees for refinement.
The Long Road to T10
Expect at least 500 days of real-time progression as a free-to-play player, even with strong badge income.
Each step becomes slower: early nodes are quick, but deeper nodes may take over a week each without speedups.
T10 is essentially late-game end content, but unlocking it is mandatory to stay competitive when T11 arrives.
The T10 Unit Special Training tree is one of the heaviest investments in Last Z: Survival Shooter. You’ll need a Level 30 Laboratory, over 1 million badges, and consistent event planning to get there.
For free-to-play players, the smartest path is:
- Max Alliance Recognition for badge income.
- Invest in one troop type to conserve badges.
- Save all pushes for event days.
- Grind steadily — rushing T10 without preparation will burn your speedups and stall your growth.
Unlocking T10 isn’t easy, but once you do, you’ll have the single biggest power spike available in the game.
