Warships Guide for OpenFront.io

Main Takeaway:
Warships are pivotal naval units that deter enemy trade, secure your ports’ income streams, and defend coastal territories. Properly acquiring, positioning, and employing warships can shift mid- and late-game momentum in your favor.

1. Overview and Acquisition

What Is a Warship?

A Warship is a boat-type building that:

How to Build

  1. Port Requirement: Must own at least one Port.
  2. Build Menu: Right-click any water tile → yellow wrench icon → select Warship.
  3. Spawn Location: Appears at your nearest port and sails to the targeted tile.

Cost Scaling

2. Core Properties

PropertyValue
Hit Points500 → 1 000 HP (max) when repaired
Repair Rate+1 HP per tick (100 ms) if you have ≥1 Port
Movement1 tile/tick (2 tiles/sec) → 2 tiles/tick when chasing trade
Attack Rate1 shell every 2 s (20 ticks)
Shell Damage250 HP per hit
Targeting Range130 tiles
Territory BoundsUnlimited in water

3. Behavior and Combat

Target Priority

  1. Enemy Warships
  2. Enemy Transport Ships
  3. Trade Ships (for capture)

Engagement Rules

4. Strategic Roles

4.1 Trade Denial & Income Theft

By placing warships along enemy trade routes or chokepoints, you can:

Tip: Deploy your first warship early on your most contested sea border to maximize interceptions.

4.2 Coastal Defense

Warships serve as mobile coastal batteries:

Tip: Position warships near your flanks to shield weaker backline allies and prevent enemy boat raids.

4.3 Fleet Support

In team games, warships can:

5. Optimal Usage Tips

  1. Early Investment: Build at least one warship after your first port to begin intercepting trade.
  2. Choke Points: Identify narrow waterways or river mouths—ideal for ambushes.
  3. Incremental Builds: Consider cost scaling; refrain from over-building until mid-game economics improve.
  4. Combined Arms: Support warships with nearby ports for continuous repair and with defense posts for layered coastal defense.
  5. Mobility Exploits: Use manual movement (left-click highlight → target water) to outmaneuver slower enemy vessels.

6. Common Pitfalls

7. Summary

Warships in OpenFront.io are versatile naval units essential for both offense and defense at sea. By understanding their acquisition costs, combat properties, and strategic roles—particularly trade denial and coastal defense—you can leverage warships to disrupt opponent economies and secure maritime superiority.