Boom Beach Wiki
Boom Beach Wiki
Cluster Grenade
"Throws a Cluster Grenade at the nearest building that not only explodes, but also peppers the area behind the target with explosive shrapnel."


  • Cluster Grenade is a Hero Ability that can be used by Sgt. Brick in attacks.
  • It fires an initial shell that heavily damages its initial target and then explodes into shrapnel which peppers the area behind the target.
  • It can be used to trigger Mines, Boom Mines, and Shock Mines.
  • Each shot costs 3 more Energy than the previous, with a starting cost of 3 Gunboat Energy.

Offensive Strategy

  • Since the Cluster Grenade is cheap compared to the Barrage, consider using it as an alternative.
  • The Cluster Grenade fires many shells in a fairly large, fan-shaped area in front of your troops, so it can be useful for taking out mines that they are approaching.
    • Be careful when using this ability if your troops are clumped up at a short distance in front of Sgt. Brick, as the shrapnel can damage them.
  • The Cluster Grenade's shrapnel can finish off a heavily damaged building, provided that the building is not too far from Sgt. Brick herself. This can save Energy if damaging Gunboat Weaponry become too expensive.


Shrapnel Count
Initial Damage
Shrapnel Damage
Upgrade Cost
Hero Token
Upgrade Time
Instant (Time Only)
Hero Level Required
1 862 87 N/A N/A N/A 1
2 1,309 131 8 8h 119 4
3 1,988 199 16 16h 202 8
4 3,017 302 32 1d 8h 339 12
5 4,580 458 64 2d 16h 572 16
6 6,454 646 128 5d 8h 964 22
Number of Shots
Energy Cost
Cumulative Energy Cost
1 3 3
2 6 9
3 9 18
4 12 30
5 15 45