Season 2 — Polar Storm
ThemeCold & Temperature Survival
Key ResourcesCoal · Titanium Alloy · Rare Soil
GoalKeep Bases Warm, Capture Land
Season 2 is a cold-weather season — survival depends on keeping your base temperature up through blizzards. The work starts now, while we are still in Season 1. Use the prep list below, then follow the first-days plan when S2 opens.
Prep Now (During Season 1)
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Buy Violet and universal shards.
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Research the Veteran Craftsman alliance tech — it lowers building costs in S2.
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Don't spend all your hero return tickets. Save some for the first days of S2 — using them then rewards coal and titanium alloy.
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During the Black Market event, buy the Tower of Victory decoration for its S2 temperature bonus.
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Stack unclaimed Doom Walker kills from S1 — claiming them after S2 starts gives a bonus coal reward.
Your Goals in Season 2
Season Goals
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Increase your individual furnace levels.
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Keep the Alliance Furnace running as much as possible.
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Accumulate Rare Soil — earned by capturing land and cities, and it determines season rankings.
Individual Goals
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Legendary hero badge item
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10 new-era recruitment tickets
First Days of Season 2
1
Buy the season and weekly pass.
2
Have radars stacked for Day 1 — a Distressed Survivor event rewards coal on the first kill.
3
Pick your first dig site to capture. Match the beast type to your squad: Polar Bear = tank weakness, Gorilla = missile weakness, Mammoth = aircraft weakness.
4
Double first blood: hit a 160+ Doom Walker right after the daily reset (end of S1), then hit another 160+ DW after S2 starts — you can claim two first-blood rewards.
5
Upgrade your first Alloy Factory to lvl 15 only. Lvl 15 unlocks the next factory — level each new one to 15 before going higher (up to 4 factories; the 5th comes with the Weekly Season Pass).
6
Build the High-Heat Furnace the moment it's available and keep it running at all times.
7
Keep bases at +40°C early on. Never let them drop below -20°C — below that you cannot start rallies or teleport.
8
Enable "auto-turn on furnace" for blizzards.
9
Use recon planes to heat bases up to 40°C.
10
Get the Engineer profession to lvl 40 to unlock "Intense Overdrive" (+2°C per skill level to furnace overdrive output).
11
Purchase the coal pack.
Staying Warm
Main Ways to Get Heat
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High-Heat Furnace in overdrive — burns 4× more coal but heats fast. Use during blizzards only.
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Relocate your base within range of the Alliance Furnace.
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Recon planes — can heat bases up to +40°C.
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Fire Bombs — Engineer seasonal skill, +10°C in a 9×9 area for 5 minutes.
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Get closer to captured cities — they provide 5°C to 60°C of warmth depending on level.
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When troops leave your base, you lose heat — keep troops home during blizzards.
Reduce Factory & Furnace Costs
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Engineer profession lvl 35 skill: Resource Saving (up to -5% resource consumption).
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Alliance tech: Veteran Craftsman (cost reduction on seasonal buildings).
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Tech research: Master Craftsman.
Minimum storm survival (no Alliance Furnace): Tower of Victory lvl 3 (+5°C) + Intense Overdrive research (+6°C) = -19°C base temperature — just above the -20°C freeze threshold.
Age of Oil — Expansion Tech Tree
A longer-term S2 expansion line focused on oil production and territory. Community-sourced guide (@meigic).
Initial Actions
1
Switch to Engineer profession — switch quickly when changing professions to maximize resource savings.
2
Immediately unlock the first Oil Well.
3
Upgrade oil production to level 30.
4
Complete territory occupation — join the Oil League for dividends.
5
Keep completing daily tasks and events to earn oil.
Next Steps
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Once a technology drops below its first star tier, you can keep upgrading star technologies.
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Don't upgrade further until you've completed at least one Technology Center research.
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Skip general resource-saving techniques — focus on technology and building upgrades instead, since these reduce resource limits directly.
Unrestricted oil is available through multiple channels and can be purchased, but supply is limited in the first week.