Whiteout Survival Infantry Camp Guide [2026] — Level Requirements & Costs
The Infantry Camp is one of three core troop training buildings in Whiteout Survival, alongside the Lancer Camp and Marksman Camp. Understanding its upgrade costs, unlock thresholds, and the cross-dependency with the Furnace is essential for keeping infantry battle-ready for Bear Hunt, Hall of Chiefs, exploration, and SvS combat.
This guide covers the full upgrade path from Level 1 through Level 30, the post-30 Fire Crystal tiers, troop tier unlocks, the promotion system, and how to prioritise the Infantry Camp alongside the rest of your city.
[!NOTE] Part of the Progression Strategy Series:
- Fire Crystal Furnace Guide: The primary track for all military buildings.
- How to Upgrade Furnace Fast: Optimizing your construction queue.
- Embassy Guide: Managing alliance help for faster upgrades.
Overview
The Infantry Camp is a military building used to train and upgrade Infantry troops. Each upgrade does three things:
- Increases Training Capacity — more troops per training batch.
- Reduces Training Time — a small per-level speed gain.
- Increases Building Power — adds to your total chief power.
Higher levels also unlock higher troop tiers, which is the primary reason most players push the camp upward. Tier-by-tier strength scaling is steep, so the camp's level is more strategically important than its raw stat increases.
When the Infantry Camp Unlocks
The Infantry Camp becomes buildable when your Furnace reaches Level 7. There are no quest, resource, or hero prerequisites beyond that — once Furnace 7 completes, the camp appears as a buildable structure on your city grid.
This is the same threshold for the Lancer Camp and Marksman Camp, so all three troop buildings become available simultaneously.
Troop Tiers Unlocked by Camp Level
Each Infantry Camp threshold unlocks a new troop tier:
| Tier | Camp Level Required |
|---|---|
| T1 | Level 1 |
| T2 | Level 4 |
| T3 | Level 7 |
| T4 | Level 11 |
| T5 | Level 13 |
| T6 | Level 16 |
| T7 | Level 19 |
| T8 | Level 22 |
| T9 | Level 26 |
| T10 | Level 30 |
[!IMPORTANT] T11 (Helios Infantry) is not unlocked through the Infantry Camp. It requires War Academy research after your Furnace progression has caught up.
Standard Upgrade Costs (Levels 1–30)
| Lv | Furnace Req. | Wood | Meat | Coal | Iron | Base Time |
|---|---|---|---|---|---|---|
| 1 | 7 | — | — | — | — | 2s |
| 2 | 7 | 140 | — | — | — | 9s |
| 3 | 7 | 645 | — | — | — | 45s |
| 4 | 7 | 1,400 | — | 285 | — | 2m 15s |
| 5 | 7 | 6,000 | — | 1,200 | — | 4m 30s |
| 6 | 7 | 15,000 | — | 3,000 | 765 | 9m |
| 7 | 7 | 55,000 | — | 11,000 | 2,700 | 18m |
| 8 | 8 | 100,000 | — | 20,000 | 5,000 | 27m |
| 9 | 9 | 200,000 | — | 41,000 | 10,000 | 40m 30s |
| 10 | 10 | 360,000 | — | 73,000 | 18,000 | 54m |
| 11 | 11 | 460,000 | 460,000 | 92,000 | 23,000 | 1h 7m 30s |
| 12 | 12 | 580,000 | 580,000 | 110,000 | 29,000 | 1h 21m |
| 13 | 13 | 830,000 | 830,000 | 160,000 | 41,000 | 1h 39m |
| 14 | 14 | 1,100,000 | 1,100,000 | 220,000 | 55,000 | 2h 6m |
| 15 | 15 | 1,600,000 | 1,600,000 | 320,000 | 81,000 | 2h 42m |
| 16 | 16 | 2,000,000 | 2,000,000 | 410,000 | 100,000 | 4h 34m |
| 17 | 17 | 3,200,000 | 3,200,000 | 650,000 | 160,000 | 5h 29m |
| 18 | 18 | 4,300,000 | 4,300,000 | 870,000 | 210,000 | 6h 35m |
| 19 | 19 | 5,400,000 | 5,400,000 | 1,000,000 | 270,000 | 9h 52m 30s |
| 20 | 20 | 7,500,000 | 7,500,000 | 1,500,000 | 370,000 | 12h 20m 30s |
| 21 | 21 | 9,500,000 | 9,500,000 | 1,900,000 | 470,000 | 16h 2m 30s |
| 22 | 22 | 12,000,000 | 12,000,000 | 2,500,000 | 630,000 | 1d 4m |
| 23 | 23 | 15,000,000 | 15,000,000 | 3,100,000 | 780,000 | 1d 9h 42m |
| 24 | 24 | 21,000,000 | 21,000,000 | 4,200,000 | 1,000,000 | 1d 23h 11m |
| 25 | 25 | 28,000,000 | 28,000,000 | 5,700,000 | 1,400,000 | 2d 18h 3m |
| 26 | 26 | 36,000,000 | 36,000,000 | 7,300,000 | 1,800,000 | 3d 3h 57m |
| 27 | 27 | 52,000,000 | 52,000,000 | 10,000,000 | 2,600,000 | 3d 19h 9m |
| 28 | 28 | 69,000,000 | 69,000,000 | 13,000,000 | 3,400,000 | 4d 8h 49m |
| 29 | 29 | 86,000,000 | 86,000,000 | 17,000,000 | 4,300,000 | 5d 33m |
| 30 | 30 | 100,000,000 | 100,000,000 | 21,000,000 | 5,200,000 | 6d 0h 40m |
Reading the Costs Table
- Resource Gating: Wood is required from Lv. 2, Coal from Lv. 4, Iron from Lv. 6, and Meat from Lv. 11.
- Lockstep Climb: From Lv. 8 onward, the Infantry Camp must match your Furnace level.
- Speed-Up Potential: Base Time is unmodified. Real time is reduced by research, heroes (like Jasser), and alliance help.
Cumulative Cost & Time to Each Tier
Planning for T5, T7, T9, or T10 requires looking at the total climb:
| Reach | Camp Lv | Wood | Meat | Coal | Iron | Cumulative Base Time |
|---|---|---|---|---|---|---|
| T2 | 4 | ~2.2K | — | ~285 | — | ~3 min |
| T5 + Promote | 13 | ~2.6M | ~1.87M | ~511K | ~129K | ~6h 44m |
| T7 | 19 | ~20.2M | ~19.47M | ~3.98M | ~1.0M | ~1d 14h |
| T9 | 26 | ~149.2M | ~148.47M | ~30.18M | ~7.46M | ~13d 1h |
| T10 | 30 | ~456.2M | ~455.47M | ~91.18M | ~22.96M | ~32d 6h |
The L26→L30 Wall
Roughly 67% of the total resource cost for L1–L30 is concentrated in the final four levels. The jump from T9 to T10 is a massive investment equivalent to building the camp three times over through T9.
Training Capacity & Training Speed
Each level improves batch sizes and efficiency:
| Lv | Capacity | Training Speed |
|---|---|---|
| 1 | 17 | 0.3% |
| 13 | 69 | 3.4% |
| 20 | 126 | 5.3% |
| 30 | 209 | 8.0% |
Building Power Contribution
The Infantry Camp scales geometrically in power:
- Level 1: ~400
- Level 13: ~27,680
- Level 20: ~86,360
- Level 30: ~304,700 (Approx. 770× Level 1)
Construction Speed Math
Real upgrade time is reduced by a stack of multipliers:
- Research: Growth tree (up to 50%+ reduction).
- Heroes: Jasser (Construction hero), chief gear, and pet skills.
- State Buffs: Governor buffs and event bonuses.
| Total Speed Reduction | Levels 1–30 Calendar Time | Level 30 Alone |
|---|---|---|
| 0% (base) | ~32 days | 6d 0h 40m |
| 50% | ~16 days | 3d |
| 80% | ~6.5 days | 1d 5h |
Fire Crystal Levels (Post-30)
Once your state enters the Age of Fire Crystal, players at Furnace 30 can push into FC tiers:
- FC1: ~23M Wood/Meat, ~59 Fire Crystals.
- FC10: ~59M Wood/Meat, with multi-day build times.
Troop Promotion
Unlocking at Level 13 (T5), the Promote function allows you to convert lower-tier troops into higher tiers by paying only the difference in resources and time.
Strategic Advantages:
- Cost Efficiency: You never lose the investment made in T1–T4 troops.
- Event Scoring: Promotion is the fastest way to gain points during Hall of Chiefs or SvS Troop Training days.
- Fodder Strategy: Train T1 troops during off-events to "store" resource value, then promote them during scoring windows.
Construction Constraints & Lockstep
The Infantry Camp, Lancer Camp, and Marksman Camp move together in a forced lockstep climb:
- Furnace Gating: Furnace level N unlocks Camp level N.
- Furnace Prerequisites: Furnace level N+1 often requires all three camps to be at level N.
- No Benefit to Rushing: Pushing one camp ahead doesn't bypass the Furnace bottleneck.
Upgrade Priority & Resource Bottlenecks
Priority Checklist:
- Push Infantry first if: You are a rally lead, use Infantry heroes (Jeronimo, Wu Ming), or are approaching a Bear Hunt deadline.
- Balanced approach: Recommended for general PvE and exploration.
Resource Phase Map:
| Phase | Camp Levels | Bottleneck Resource |
|---|---|---|
| Early | 1–10 | Wood + Iron |
| Mid | 11–22 | Wood + Meat (equal) |
| Late | 23–30 | Iron (Slowest production curve) |
F2P vs Spender Considerations
F2P / low-spend players
The Infantry Camp climb is dictated by your Furnace pace. Don't try to rush ahead of the Furnace — the level cap is hard, so you'll just queue up wasted research time. Focus on:
- Hitting T7 (Camp 19) efficiently and holding there during Hall of Chiefs Troop Training events.
- Stockpiling T1 and T2 infantry between events as cheap promotion fodder.
- Using alliance help and free speed-ups rather than spending gems on construction speed.
Mid-spenders
The bottleneck shifts from resources to construction time around Furnace 22+. Speed-up packs and chief gear with construction bonuses (Jasser as construction hero) become high-value. T9 and T10 are within reach but resource-intensive — keep purchase pace aligned with troop training capacity, not just camp level.
Heavy spenders
The Fire Crystal phase is where Infantry Camp investment becomes a meaningful resource sink. FC upgrades cost orders of magnitude more than Level 30, scale slowly, and gate FC-tier troops that matter for endgame combat. Pace FC upgrades against your overall city Furnace level rather than racing the camp ahead.
Acquisition Timeline
Calendar time to reach each tier unlock varies enormously based on spend level, alliance support, and event participation. These are realistic ranges, not best-case speedruns:
| Milestone | F2P / Casual | F2P / Active + Strong Alliance | Mid-spender | Heavy spender |
|---|---|---|---|---|
| T5 (Camp 13) | 3–5 weeks | 2–3 weeks | 1–2 weeks | < 1 week |
| T7 (Camp 19) | 2–3 months | 6–8 weeks | 4–6 weeks | 2–3 weeks |
| T8 (Camp 22) | 4–5 months | 3–4 months | 2–3 months | 4–6 weeks |
| T9 (Camp 26) | 7–10 months | 5–7 months | 4–5 months | 2–3 months |
| T10 (Camp 30) | 12–18+ months | 8–12 months | 6–9 months | 3–5 months |
[!NOTE] Active F2P assumes regular event participation, full daily quest completion, alliance gifts, and consistent gather rotation. Casual F2P assumes log-in-and-play without event grind.
When to Stop Investing
- Reasonable pause points: At Lv. 19 (T7) if you need to catch up on economy, or Lv. 30 before the Age of Fire Crystal begins.
- Trap: Never promote troops outside of a scoring event window.
Known Ambiguities
- Iron Costs: Some reports vary between 5.2M and 5.8M for Lv. 30.
- FC Sub-levels: Exact Fire Crystal counts for FC5+ can vary by server patch.
- Promotion Math: While the "difference" mechanic is confirmed, granular time savings per tier are approximate.
Build alongside your Furnace, prioritize T5 for promotion, and bank your T10 push for a major construction event.