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Spies, Nukes and the Ion Cannon: Covert and Heavy Weapons Explained

Published 6 November 2026

In short: In Battle Of World, a spy plants agents in enemy sites to gather information and carry out sabotage such as burning oil reserves, while missiles and the ion cannon strike a target directly. Scout with spies first, then commit your army or your heavy weapons.

Armies win battles. Information and timing win wars. Battle Of World gives every ruler a spy network and two heavy weapons, and knowing when to use each is what separates a good ruler from a great one.

Spies and agents

You train one spy. Your spy travels to an enemy site and plants agents there, up to ten at a time across the map. Agents stay where they are planted and keep working for you.

What they are for:

Spying is not free, and a rival can lock a site down against your agents. Use them where the information is worth it.

Tip: scout before you strike. A squad sent blind into a full garrison is a squad lost.

Missiles

A missile is launched from a silo at a target colony or outpost. It flies on its own and hits without a battle, damaging what it lands on and leaving radiation behind. A missile already in flight still lands, even if its target becomes an ally on the way, so choose your target carefully.

The ion cannon

The ion cannon strikes from orbit and is paid for in energy. It is your answer when a rival's army is too big to fight head on, or when a squad has to be stopped before it arrives.

Putting it together

  1. Plant agents to see what your target really has.
  2. Weaken them with sabotage or a strike.
  3. Time your army's arrival to the tick, while they are still recovering.

Want help with the timing? Our beginner's guide explains ticks and travel.

Questions

How many spies can I have in Battle Of World?

One. Your spy plants agents in enemy sites, up to ten at a time, and the agents stay where they are planted.

Does a missile still land if the target becomes my ally?

Yes. A missile already in flight still lands on its target.

What does the ion cannon cost?

The ion cannon is paid for in energy, so plan your energy production if you want to use it.

Ready to found your colony?

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