Ultimate Anti‑Armour Gun guide: Island defence in Anno 1800

To begin this guide, we’ll take a closer look at the Anti‑Armour Gun in Anno 1800. This sets the foundation for understanding how it works, why it matters, and how it fits into your island’s overall defence strategy.

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Description

The Anti‑Armour Gun is a powerful late‑game harbour defence in Anno 1800. It plays a key role in protecting your islands, especially once enemies begin deploying stronger ships.

To start with, this gun is designed specifically to counter vessels built in the Steam Shipyard. These ships use steel hulls, which makes them far more resistant to damage. As a result, earlier defensive guns struggle to make any real impact against them.

Because of this, the Anti‑Armour Gun becomes essential as you move into the later stages of the game. When placed around your harbour areas, it adds a reliable layer of protection and helps you deal with heavily armoured threats much more effectively.

Overall, the Anti‑Armour Gun is a valuable upgrade to your island defence, ensuring you stay prepared as naval warfare escalates.

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Damage against Ship types

In this section, we’ll explore how much damage the Anti‑Armour Gun deals to different ship types. As you progress through the game, this becomes increasingly important.

To begin with, the Anti‑Armour Gun uses large damage multipliers, and these vary depending on the type of ship it targets. Because of these multipliers, the gun performs exceptionally well against heavily armoured vessels, especially those built in the Steam Shipyard.

As a result, understanding these damage differences helps you plan your harbour defence more effectively and ensures you’re ready for tougher naval threats later in the game.

Against wooden hulled Ships (Sailing Ship)

• 40% damage
• 200 damage per shot
• 21.51 DPS

Against steel hulled ships(Steam Ship)

• 355% damage
• 1775 damage per shot
• 190.86 DPS

These stats show how effective the Anti-armour gun is against Steel hulled ships. It also highlights how mediocre the Anti‑Armour Gun is against Frigates, Ships of the Line, and Flagships. In particular, these wooden‑hulled vessels take far less damage, which means the gun performs noticeably worse when targeting them. As a result, it becomes clear that the Anti‑Armour Gun is designed for late game steel ships rather than early game wooden fleets.

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Strengths and Weaknesses

Now that we’ve covered its damage output, let’s take a closer look at the key strengths and weaknesses of the Anti‑Armour Gun. This helps you understand exactly when it shines and when it struggles, especially as your naval battles become more complex in the late game.

Strengths

• Exceptional damage vs Steam ships
• Powerful stacking debuffs
• Good HP for a turret
• Works in all regions

Weaknesses

• Short range
• Slow reload
• Easily out ranged by: Battle cruisers, Ships of the line, and Frigates/Flagships with +20-25% range items.
• its usefulness drops sharply once the enemy begins deploying long range ships. At that point, the Anti‑Armour Gun struggles to keep up, as these distant attackers can stay safely out of its firing range and chip away at your defences with little risk.

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