Signal flare lvl2.png

“Alerts defending troops the enemy is near! Instantly spawn a bonus wave of temporary boosted defenders from all nearby garrisons, stables, bunkers, and Rocket Arsenals.”

Levels[edit | edit source]

General Information[edit | edit source]

  • The Signal Flare is a Defensive Building that alerts defending troops the enemy is near. Causes nearby garrisons, stables and bunkers to spawn a bonus wave of boosted defenders.
  • It's a one time use and has to be re-armed after you're attacked (if it was triggered during the attack).

Defensive Strategies[edit | edit source]

  • Place within range of garrisons, stable, bunkers, or Rocket Arsenals.

Statistics[edit | edit source]

Age Number Available
Cold War Age 1
Space Age
Digital Age 2
Level Build Cost Oil icon.png Re-Arm Cost Gold icon.png Upgrade Time Clock.PNG Citizens Needed Citizen.PNG Experience Gain Exp Boost


Movement Speed Attack Speed Range Age Unlocked
1 45,000 ? 0s 1 - 10s +20% +20% 3 Cold War Age
2 55,000 ? 11d 1,945 12s

Boosts[edit | edit source]

Harriet Tubman at the University confers these bonuses to Traps:

  • Traps upgrade Time: Decreases the time of upgrading Traps by 1% (10 levels).
  • Traps upgrade Cost: Decreases the cost of upgrading Traps by 1% (10 levels).

VIP Bonuses[edit | edit source]

Building Upgrade Resource Cost

  • Level 9 : 5%
  • Level 12 : 10%
  • Level 15 : 15%

Parliament[edit | edit source]

Base Financing: Defense

  • Reduce cost of Defense building upgrades by 10,000 Oil (to a minimum of Free)
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