Ubisoft Mainz released Anno 1800 on 16 April 2019 and built it around five Old World population tiers that each demand more goods than the one below. Sunken Treasures followed on 30 July 2019 with Cape Trelawney and Crown Falls, a continental island roughly three times the size of anything in the base game and 103 Influence to settle. Later sessions add the New World, the Arctic and Enbesa, each with its own residents, goods and shipping problem.
Combat in Anno 1800 rewards knowledge over reflexes. Understanding how each mechanic works (and how they interact) is what turns a struggling player into a dominant one. New here? Start with our beginner's guide for the basics.
Core Combat Mechanics
1. Five Old World population tiers
Farmers, Workers, Artisans, Engineers and Investors upgrade in sequence, and each tier keeps every need of the tier below. Workers still want Bread, Sausages, Soap and Beer after they become Artisans, so the demand curve compounds rather than replacing itself.
Why it matters: This is the foundation of all combat. Everything else builds on this.
2. Island-wide shared workforce
Every residence contributes labour of its own tier to a single island pool, and a Steelworks needs Workers specifically, not just bodies. Upgrading too many Workers into Artisans starves the factories that only Workers can staff.
Why it matters: The most underrated mechanic. Players who master this early have a massive advantage.
3. Influence spent on islands and ships
Influence comes from total population and pays for settling extra islands, keeping ships in service, buying Trade Union and Town Hall items and running propaganda. Crown Falls alone costs 103 Influence, which is why most players settle it late rather than first.
Why it matters: Unlocks a new layer of gameplay depth once understood.
4. Trade Union item slots
A Trade Union covers a radius of production buildings and holds items that raise output, cut input cost or change a recipe entirely. Legendary items can double a chain's throughput, so the item hunt matters more than adding a fourth Schnapps Distillery.
Why it matters: The tactical edge that separates average players from advanced ones.
5. Expeditions to other sessions
Ships loaded with a crew, supplies and equipment sail off-map to resolve text events with skill checks in categories such as Diplomacy, Force and Medicine. Expeditions are the route to Cape Trelawney, which unlocks after you reach 700 Artisans.
Why it matters: The endgame optimization mechanic. Small improvements here compound into massive gains.
How These Mechanics Combine
Understanding how mechanics interact is where real optimization happens:
Five Old World population tiers + Island-wide shared workforce
Farmers, Workers, Artisans, Engineers and Investors upgrade in sequence, and each tier keeps every need of the tier below. When combined with Island-wide shared workforce, every residence contributes labour of its own tier to a single island pool, and a steelworks needs workers specifically, not just bodies. This combination is the core of every effective build.
Influence spent on islands and ships + Trade Union item slots
Influence comes from total population and pays for settling extra islands, keeping ships in service, buying Trade Union and Town Hall items and running propaganda. Paired with Trade Union item slots, a trade union covers a radius of production buildings and holds items that raise output, cut input cost or change a recipe entirely. This is why the tier list favors builds that leverage both.
Expeditions to other sessions as a Multiplier
Ships loaded with a crew, supplies and equipment sail off-map to resolve text events with skill checks in categories such as Diplomacy, Force and Medicine. Expeditions are the route to Cape Trelawney, which unlocks after you reach 700 Artisans. This system amplifies everything else. The better your Expeditions to other sessions optimization, the more your other mechanics pay off.
Combat by Build
Each build approaches combat differently:
Farmers (A-Tier)
Combat approach: Balanced combat style. Key equipment: Schooner Primary mechanic: Five Old World population tiers
Farmers offers a solid combat experience. Full setup in our builds guide.
Workers (A-Tier)
Combat approach: Balanced combat style. Key equipment: Clipper Primary mechanic: Island-wide shared workforce
Workers offers a solid combat experience. Full setup in our builds guide.
Artisans (A-Tier)
Combat approach: Balanced combat style. Key equipment: Cargo Ship Primary mechanic: Influence spent on islands and ships
Artisans offers a solid combat experience. Full setup in our builds guide.
Engineers (A-Tier)
Combat approach: Balanced combat style. Key equipment: Ship of the Line Primary mechanic: Trade Union item slots
Engineers offers a solid combat experience. Full setup in our builds guide.
Investors (A-Tier)
Combat approach: Balanced combat style. Key equipment: Monitor Primary mechanic: Expeditions to other sessions
Investors offers a solid combat experience. Full setup in our builds guide.
Advanced Combat Techniques
Damage Optimization
- Match your equipment to your build's stat priorities
- Exploit Five Old World population tiers for maximum damage windows
- Chain Island-wide shared workforce and Influence spent on islands and ships for combo damage
- Use Trade Union item slots to create openings
Survivability
- Learn enemy patterns before committing to attacks
- Read the fertility list in the island panel before you plant a flag. An island without Grain fertility can never bake its own Bread, and hauling Bread across the map for 5,000 Workers costs more shipping than the island is worth.
- Position using Five Old World population tiers to control spacing
- Save defensive options for guaranteed survival, not comfort
Boss Combat
Bosses test your understanding of every mechanic. See our boss guide for fight-specific strategies.
- Phase awareness: Most bosses change behavior at health thresholds
- Patience over aggression: One extra hit per opening beats dying to greed
- Build preparation: Swap gear and equipment for specific fights when needed
Common Combat Mistakes
- Button mashing: Committed attacks have recovery frames. Mashing locks you into animations.
- Ignoring Island-wide shared workforce: This mechanic exists for a reason. Players who use it take significantly less damage.
- Wrong equipment for the situation: Check our weapons guide for situational picks.
- Not learning from deaths: Every death teaches something. If you don't know why you died, you'll die the same way again.
- Overcommitting: Trading hits works in Old World but will get you killed in Enbesa.
More Anno 1800 Guides
- Anno 1800 Anno 1800 Overview
- Anno 1800 Best Builds
- Anno 1800 Tier List
- Anno 1800 Walkthrough
- Anno 1800 Beginner's Guide
- Anno 1800 Tips & Tricks
- Anno 1800 Weapons Guide
- Anno 1800 Boss Guide
- Anno 1800 Maps & Locations
- Anno 1800 Crafting Guide
- Anno 1800 Classes & Characters
Similar Games
If you enjoy Anno 1800, check out these related guides:
- Cities: Skylines Combat Guide: city-builder game with similar mechanics
- Manor Lords Combat Guide: city-builder game with similar mechanics
- Timberborn Combat Guide: city-builder game with similar mechanics
