Missile Silo Guide for OpenFront.io

Main Takeaway: The Missile Silo is a late-game military building that unlocks strategic nuclear strikes. Proper placement, timing, and coordination with defenses (SAM Launchers and Defense Posts) are essential to maximize its impact.

1. Overview

The Missile Silo is a military building priced at 1,000,000 gold. It serves exclusively to launch three types of strategic missiles:

[Fact Source: OpenFront Miraheze Wiki]

2. Construction Requirements

3. Missile Types & Effects

Missile TypeCost per LaunchArea of EffectCooldown
Atom Bomb750,000 goldDestroys small clusters of Cities, Ports, Defense Posts, or Missile Silos10 s
Hydrogen Bomb5,000,000 goldDestroys large clusters of key structures10 s
MIRV25,000,000 goldScatters multiple Atom-sized blasts across target nationNo cooldown

Launch costs and cooldowns are defined in the Buildings page of the OpenFront Miraheze Wiki.

4. Usage & Mechanics

  1. Targeting:

    • Right-click on enemy territory pixel → building menu → select missile type.
    • The nearest available Missile Silo will launch the strike.
  2. Reload Indicator:

    • After firing, the silo flashes red for 8 seconds, indicating it is reloading and cannot fire again until this period ends.
  3. Defensive Countermeasures:

    • SAM Launchers (Surface-to-Air Missile) have a 75% chance to intercept Atom or Hydrogen Bombs within a 75-pixel radius; they cannot destroy MIRVs.
    • Best practice: Surround high-value silos and cities with a network of SAMs and Defense Posts.

“When a Missile Silo just launched a missile, it becomes red for 8 seconds…cannot be used.” (Missile Silo – OpenFront Miraheze Wiki)

5. Strategic Considerations

6. Example Build Order (Mid-Late Game)

  1. Establish 3–4 Cities for population buffer.
  2. Build 2–3 Ports to sustain gold flow (125k → 250k → 500k).
  3. Deploy 2–3 SAM Launchers around forward borders.
  4. Construct 1–2 Missile Silos in safe, inland pixels.
  5. Add Defense Posts along borders to deter incursions.
  6. Begin nuclear strikes once you have 1–2M+ gold reserves.

7. Advanced Tips

With precise execution, Missile Silos transform the battlefield in OpenFront.io—use them wisely to dominate mid-to-late game engagements.