For State of Survival players and leaders in the Core Conspiracy season. Checked October 31 2026.
Short answer: Battle Beneath is State of Survival's 1-hour, four-alliance underground battle from the Core Conspiracy (M.I.G.O.) season. Upgrade the Excavation Hub and three buildings that unlock skills: Power Nexus for march speed, Siege Workshop for building damage and Arsenal for combat damage. Capture Guard Towers and hit buildings for Merits.
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Patch v1.27.100 on October 14, 2026 opened a new state event, Core Conspiracy. Its battlefield is Battle Beneath, an underground fight with its own buildings and skills. Creators also call the season M.I.G.O.
This guide uses the official Battle Beneath guide the State of Survival team posted on October 17, plus the numbers ValencianistasPL shows in his M.I.G.O. guide video. We mark which is which.
The basics
- Four alliances fight for control of the underground.
- The battle lasts 1 hour.
- You dig, explore and occupy buildings with your allies.
- There is a building development system with one main building and three auxiliary buildings.
The four buildings
| Building | Skill | Official effect | Numbers shown by ValencianistasPL |
|---|---|---|---|
| Excavation Hub (main) | - | Upgrade to draw and get bonuses; its level sets some auxiliary upgrade requirements | Max level 120 |
| Power Nexus | Rapid Deployment | Increases march speed | +20% march speed for 30 seconds |
| Siege Workshop | Siege Breaker | Increases damage to buildings | +10% building damage for 20 seconds |
| Arsenal | Combat Surge | Boosts personal and rally damage | +5% final damage for 20 seconds |
Upgrading an auxiliary building raises its skill duration, the number of uses per battle and the effect. ValencianistasPL shows the skill values above at the start of the system and says the main resource is Core Alloy. He also points out that the in-game rules text mentions coal and limestone, which he says is wrong.
Skill rules
- Each skill has a limited number of uses per battle.
- You cannot use a skill again while it is still active.
- Different skills can be active at the same time.
- Uses reset when a new battle starts.
The official tip: do not use every skill at the start. Save Rapid Deployment for a long march, Siege Breaker for a building push and Combat Surge for the rally that matters.
Guard Towers
Guard Towers are more than objectives. Once your alliance captures one, it attacks enemy squads in buildings within its range at regular intervals.
- Only squads stationed in buildings inside the range get hit. Marching squads are safe.
- Each hit has a troop loss cap.
- A Guard Tower cannot wipe out a whole squad.
So towers punish anyone who sits still near them. Take the towers near the buildings you want to hold.
Merits and Reinforce
You get Merits for burning damage you deal to buildings. Once your damage passes set thresholds, Merits are awarded. That gives every member a reason to join building attacks and defense.
Reinforce works when your squad is inside a building and is not in battle or burning. You cannot use it if your squad launched an offensive rally.
Core Coins
ValencianistasPL lists three ways to get Core Coins: the event shop, Battle Beneath itself, and paid offers. He shows an offer of 50,000 coins for 499 Diamonds. For scale, the official compensation on October 27 was also 50,000 Core Coins for every Chief.
The October issues
On October 21, the team said it was working on Battle Beneath problems. On October 27 it confirmed network interruptions and disconnections, sent 50,000 Core Coins to all Chiefs, and set extra rules: Chiefs whose rankings were not finalized get first-place rewards for their division, and Chiefs whose rankings were finalized get the difference up to first place, sent in batches.
For spenders and alliance leaders
- Spend Core Coins with a plan. Decide which skill your role needs first. A rally lead gets more from Combat Surge, a building hitter from Siege Breaker.
- Check the compensation mail first. Before buying a Core Coin offer, claim the 50,000 coins from the October 27 mail and any ranking catch-up rewards.
- Leaders: split roles. Name tower takers, building hitters and rally leads. The official guide says to pick upgrades by alliance role.
- Leaders: call skill timing. Uses are limited. Call Rapid Deployment and Combat Surge in chat at the right moment instead of letting everyone fire at the start.
- Leaders: keep squads off tower ranges. Squads sitting in buildings near an enemy tower bleed troops. Move them or take the tower. More on events in our events guide.
Sources: official Battle Beneath state event guide (Oct 17 2026), issue notice (Oct 21) and compensation notice (Oct 27) by the State of Survival team in the official State of Survival Discord; patch notes v1.27.100 (Oct 14); ValencianistasPL M.I.G.O. guide; official State of Survival site.
Spotted a mistake? Tell us in the Play Smarter Discord and we will fix it.
Where Packsify fits
If you buy for Core Conspiracy, buy after you know which building your role needs. With Packsify you get up to 13% more pack value for the same money. Packsify buys the exact pack through the official Apple App Store or Google Play, the same way a purchase on your own phone works. State of Survival also has an official Top-Up Center run by the publisher. Packsify is for players who want the exact App Store or Google Play pack bought for them. Read how we keep accounts safe before your first order.
Check Packsify for State of Survival
More State of Survival guides: events worth your Diamonds, Doomsday Open guide, FHS First Light and Fleet Base guide, how to top up.
Packsify is an independent service, not affiliated with State of Survival or its publisher.

FAQ
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