Two Events, One Survival Test

Cold Wave and Beast Crisis are Season 2's mandatory survival events. Cold Wave drops server-wide temperatures and threatens to push your base below the -20C lockout threshold. Beast Crisis sends waves of enemies to destroy your Alliance Furnace — one of your most important heat sources. When they happen simultaneously, unprepared alliances face cascading failures that can knock them out of competition for days.

These events are not optional side content. They are direct threats to your ability to play the game.

The Cascade Failure

Cold Wave drops the temperature. Beast Crisis destroys your heat source. Lose the Alliance Furnace during a Cold Wave and your entire alliance can fall below -20C simultaneously. Below -20C, you cannot rally, cannot teleport, and cannot fight back. This is the worst-case scenario in Season 2 — a cascading lockout that takes days to recover from. Everything in this guide exists to prevent it.

Cold Wave Alert

What It Is

Cold Wave is a periodic server-wide event that sharply drops the temperature across the entire map. Every player on the server is affected. The temperature penalty is significant enough to push players with inadequate heat sources below the -20C threshold.

When It Happens

Cold Waves occur on a schedule throughout Season 2. They are announced in advance — you will receive a Cold Wave Alert before the temperature drops. This warning window is your preparation time. Do not waste it.

What the Temperature Drop Means

Preparation LevelCold Wave Experience

Well-prepared (high furnace + alliance furnace + cities)Temperature drops but stays above -20C. Minor inconvenience. You continue playing normally

Adequately prepared (mid furnace + alliance furnace)Temperature drops close to -20C. Uncomfortable but survivable if nothing else goes wrong

Underprepared (low furnace, no alliance furnace proximity)Temperature drops below -20C. Full lockout — no rallies, no teleporting, severely reduced production

The difference between survival and lockout comes down to preparation done before the Cold Wave hits. You cannot react your way out of a Cold Wave after it starts. Your furnace level and heat stacking must already be sufficient.

Cold Wave Preparation

Start this checklist when you see the Cold Wave Alert:

Check your coal reserves — ensure at least 24 hours of burn time, preferably 48
Verify Alliance Furnace proximity — if your base is outside the Alliance Furnace radius, teleport closer immediately
Top off your High-Heat Furnace fuel — do not enter a Cold Wave with low coal
Confirm captured cities near your hive are still held — losing a city's heat contribution during a Cold Wave compounds the temperature drop
Coordinate with your alliance — everyone needs to be aware and prepared
Stage your strongest squads for Beast Crisis — Cold Waves and Beast Crisis often coincide

Coal Is Your Lifeline

The number one preventable cause of Cold Wave lockout is running out of coal. Your furnace produces zero heat without fuel. Stockpile coal aggressively before every Cold Wave. If you enter the event with a full coal reserve, your furnace handles the heavy lifting. If you enter with an empty reserve, no amount of alliance coordination saves you.

Surviving During a Cold Wave

Once the Cold Wave is active:

Do not teleport away from heat sources — stay within Alliance Furnace range
Monitor your temperature — if it approaches -20C, you need emergency heat from any available source
Reduce unnecessary troop movements — focus on defence and heat maintenance, not offence
Defend the Alliance Furnace — if Beast Crisis triggers during the Cold Wave, the furnace is your lifeline
Help alliance members who are struggling — a locked-out member cannot contribute to Beast Crisis defence, which weakens everyone

Beast Crisis

What It Is

Beast Crisis is a wave-based defence event where enemies attack your Alliance Furnace. The waves escalate in difficulty. If the furnace falls, every alliance member within its radius loses a critical heat source.

Why It Matters

The Alliance Furnace provides a large temperature bonus to all nearby alliance members. Losing it means:

Immediate temperature drop for every member in range
During a Cold Wave, this drop can push multiple members below -20C
Rebuilding or recovering the furnace takes time — time during which your alliance is exposed
Members who fall below -20C cannot contribute to recovery efforts, creating a vicious cycle

WaveWhat to Expect

Early wavesManageable with moderate squads. Most alliances handle these without issue

Mid wavesDifficulty ramps up significantly. Weaker squads start taking heavy losses. Coordination becomes important

Late wavesFull-strength enemy assault. Requires your best squads and active alliance coordination to survive

Final wavesThe hardest content in the event. Only well-coordinated alliances with strong garrisons clear these without furnace damage

Beast Crisis Defence Strategy

Before the Event

Garrison the Alliance Furnace before it starts — do not wait for the first wave to arrive
Assign roles — designate primary defenders, backup reinforcements, and scouts
Bring your strongest squads — this is not the time for farming compositions
Have both squads ready if you have two strong ones — you may need to rotate as units take losses
Ensure coal and resources are stocked — you cannot resupply mid-event easily

During the Event

Focus fire on the current wave — do not split attention between multiple threats
Rotate damaged squads out and fresh squads in — stagger reinforcements to maintain a continuous garrison
Communicate losses in real time — if the garrison is weakening, alliance members need to know immediately
Do not pull garrison troops for other purposes — the Alliance Furnace is the priority above everything else during Beast Crisis
Heal troops between waves if possible — use speed-ups to get wounded troops back into the fight

Treat Beast Crisis Like an Alliance War

Beast Crisis is not a casual event you can half-attend. Losing the Alliance Furnace during a Cold Wave can lock out your entire alliance. Garrison with your strongest squads, coordinate rotations, and treat every wave like a real enemy attack. The alliances that take Beast Crisis seriously never experience the cascade lockout. The ones that do not take it seriously learn the hard way.

When Both Events Overlap

The worst-case scenario in Season 2 is a Cold Wave and Beast Crisis happening simultaneously. This combination is by design — the game tests whether your alliance can defend its heat source while the map temperature is already dropping.

Why the Overlap Is Dangerous

Cold Wave has already reduced your temperature margin
Losing the Alliance Furnace during this window removes a critical heat buffer
Members who were barely above -20C from the Cold Wave alone immediately drop below threshold
Locked-out members cannot reinforce the furnace defence, weakening the garrison
The garrison weakens, increasing the chance of losing the furnace, which locks out more members
This is the cascade failure — each loss feeds the next

How to Survive the Overlap

Prepare for Cold Wave first — coal reserves full, furnace fuelled, base positioned near Alliance Furnace
Pre-garrison for Beast Crisis — strongest squads in position before the first wave, not after
All alliance members online and communicating — this is an all-hands event
Prioritise furnace defence over everything else — do not run rallies, do not attack cities, do not gather. Defend the furnace
Have emergency heat sources ready — any secondary heat contributions (captured cities, research bonuses) provide critical margin

Furnace Management During Events

Your High-Heat Furnace is your personal safety net. During Cold Wave and Beast Crisis, furnace management becomes minute-by-minute.

Key Furnace Checks

CheckWhy It Matters

Coal levelYour furnace burns coal continuously. If it runs out during a Cold Wave, your temperature plummets. Check frequently

Furnace levelHigher levels produce more heat. If you are below level 20, Cold Waves will be dangerous regardless of coal reserves

Alliance Furnace distanceIf you are out of range, you lose this heat bonus entirely. Verify your position before every Cold Wave

City controlCaptured cities near your hive provide heat. If an enemy takes one during a Cold Wave, your margin shrinks

For the full furnace upgrade path and heat stacking strategy, see the Temperature & Furnace Guide.

Alliance Coordination for Both Events

Communication Requirements

Announce Cold Wave Alerts immediately — every member needs maximum preparation time
Beast Crisis garrison roster posted in advance — who is defending, who is on standby, who is reinforcing
Real-time updates during events — furnace health, garrison status, member temperature readings
Post-event debrief — what worked, what nearly failed, what to change for next time

Role Assignments

RoleResponsibility

Primary garrisonStrongest squads defending the Alliance Furnace from Beast Crisis waves. The core defence team

Reinforcement rotationSecondary squads ready to swap in when primary garrison takes losses. Must be standing by, not off gathering

Coal runnersMembers dedicated to gathering coal and ensuring alliance coal supplies stay full during extended events

Temperature monitorsLeadership checking member temperatures and alerting anyone approaching -20C to take emergency action

Common Cold Wave and Beast Crisis Mistakes

Not preparing before the Cold Wave Alert — if your furnace is underlevelled when the alert comes, it is already too late to upgrade in time
Running out of coal during a Cold Wave — the single most preventable disaster in Season 2. Stockpile aggressively
Sitting outside Alliance Furnace range — free heat you are missing because you did not teleport. Fix this before every Cold Wave
Treating Beast Crisis casually — it is not a background event. Losing the Alliance Furnace cascades into lockouts that take days to recover from
Not garrisoning before the first wave — reactive defence is always worse than proactive defence. Be in position before Beast Crisis starts
Splitting forces during Beast Crisis — do not run rallies, gather, or attack while the furnace is under assault. All hands on furnace defence
Ignoring locked-out alliance members — members below -20C cannot help themselves. The alliance needs to help them recover or accept losing their contribution
No post-event review — Cold Waves and Beast Crises repeat. If you barely survived this one without learning why, the next one will be worse
Underestimating late Beast Crisis waves — early waves are easy. Alliances that coast through the first few waves and then get overwhelmed by late waves lose everything
Not stacking heat sources — relying on just your personal furnace is not enough during Cold Waves. You need alliance furnace proximity, captured cities, and research bonuses all contributing

Related Guides

Season 2 Overview — full Season 2 primer with progression checklist
Temperature & Furnace Guide — furnace upgrades, heat stacking, and coal management
City Capture & Rare Soil Strategy — captured cities provide heat bonuses during Cold Waves

Cold Wave & Beast Crisis Guide (Season 2)

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