🏗️ Camp Expansion 31–35
The ultra-late-game. Each level now demands five sequential build milestones — plan every block.
🎯 The 20% Sub-Tier System
From Camp 31 onward, you can no longer one-click a single upgrade. Each full camp level is broken into five progress increments (20% → 40% → 60% → 80% → 100%). You must complete every block before the camp transitions to the next full level. This repeats continuously from 31 through 35.
20%
Foundation — unlock heavy steel & engineered lumber demand
40%
Infrastructure — rare minerals required, depots synchronized
60%
Mid-point — Field Lab + Squad Quarters gates activate
80%
Peak demand — all builders occupied, stockpile or stall
100%
Level Complete — advance to the next full camp level
👉 Tactical Note: Each 20% block demands a massive tranche of high-grade steel, rare minerals, and engineered lumber. Stockpile before committing to a sub-tier to avoid stalling your builder slots.
📦 Milestone Material Matrix
Itemized resource requirements per 20% sub-tier block. Numbers scale dramatically toward the 100% cap.
| Progress Block | ⚙️ High-Grade Steel | 💎 Rare Minerals | 🪵 Engineered Lumber |
|---|---|---|---|
| 20% | 500 | 120 | 300 |
| 40% | 1,200 | 280 | 650 |
| 60% | 2,000 | 450 | 1,100 |
| 80% | 3,500 | 800 | 1,800 |
| 100% | 5,000 | 1,200 | 2,500 |
🔒 Prerequisite Building Locks
These structures gate your sub-tier progress and must stay synchronized with each milestone bracket.
Field Lab
Research growth gate — max Efficient Construction nodes before pushing high sub-tiers.
Squad Quarters
Squad capacity lock — must match the level of the milestone you're pushing.
Resource Depots
Storage cap — upgrade to avoid overflowing during massive 20% block spends.
💡 Survivor Tip
Pair the Architect Realm Title (up to 50% building speed) with maxed Field Lab research to shred the multi-week timers on these 31–35 blocks.