Cluster Grenade

Cluster GrenadeAttack, AoE, Projectile, Grenade, Fire
Tier: 13
Level: (1-20)
Cost: (15-106) Mana
Cooldown Time: 10.00 sec
Can Store 1 Use(s)
Attack Speed: 75% of base
Attack Damage: (80-327)% of baseFire a bouncing Grenade that explodes when its fuse expires, throwing out a nova of mini Grenades that explode when they come to a stop.Primary Grenade
Detonation Time is 2 seconds
Converts 20% of Physical Damage to Fire Damage
Consumes 15 Heat if possible to Gain 50% of damage as Fire damage
Explosion radius is 2.5 metres

Mini Grenades
Attack Damage: (70-286)%
Detonation Time is 3 seconds
Supported Skills fire Projectiles in a circle
Converts 40% of Physical Damage to Fire Damage
Fires 18 Projectiles
Consumes 15 Heat if possible to Gain 50% of damage as Fire damage
Explosion radius is 1.4 metres

Additional Effects From 1-20% Quality:
(1-20)% increased Cooldown Recovery RateSkills can be managed in the Skills Panel.

Acquisition
Drop restricted
It can be obtained by engraving an Uncut Skill Gem.Metadata
Item class: Skill Gem
Metadata ID: Metadata/Items/Gem/SkillGemClusterGrenade

Cluster Grenade is a crossbow fire attack skill that fires a grenade that explodes and deals damage. The initial explosion sends out a cluster of mini-grenades that create more explosions. This skill can consume Heat to deal extra fire damage.

Gem level progression

Level		Mana Cost	Attack Damage
1	0	15	80%
2	3	16	88%
3	6	18	97%
4	10	20	107%
5	14	22	116%
6	18	25	126%
7	22	28	136%
8	26	31	145%
9	31	34	154%
10	36	38	164%
11	41	42	175%
12	46	46	187%
13	52	52	199%
14	58	57	213%
15	64	63	228%
16	66	70	244%
17	72	78	262%
18	78	86	282%
19	84	96	303%
20	90	106	327%

Recommended support gems

The following support gems are recommendations by GGG as listed in-game, and do not necessarily reflect optimal combinations or the views of the wiki.

Gem tier	Support gems
I	Fire AttunementFire AttunementSupport, Attack, Fire Category: Fire Attunement Tier: 1Support Requirements: +5 StrSupports Attacks, causing them to Gain Fire Damage but deal less Cold and Lightning Damage.Supported Attacks Gain 25% of Damage as extra Fire Damage Supported Attacks deal 50% less Cold and Lightning DamagePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.	Magnified Area IMagnified Area ISupport, AoE Category: Increased Area of Effect Tier: 1 Cost & Reservation Multiplier: 130%Support Requirements: +5 IntSupports any skill with an area of effect, making it larger.Supported Skills have 35% increased Area of EffectPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.	Multishot IMultishot ISupport, Projectile Category: Additional Projectiles Tier: 1Support Requirements: +5 DexSupports Projectile skills, making them fire extra Projectiles. Also lowers Attack and Cast speed of supported skills, as well as lessening their damage.Supported Skills deal 35% less Damage Supported Skills fire 2 additional Projectiles Supported Skills have 20% less Skill SpeedPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
II	Adhesive Grenades IAdhesive Grenades ISupport, Grenade Category: Adhesive Grenades Tier: 2Support Requirements: +5 DexSupports Grenade Skills. Grenades from Supported Skills do not bounce, instead halting movement where they intially land, but doing lower damage when they detonate.Supported Grenade Skills stop where they initially land Supported Grenade Skills deal 10% less DamagePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.	Second Wind ISecond Wind ISupport Category: Second Wind Tier: 2 Cost & Reservation Multiplier: 150%Support Requirements: +5 DexSupports skills with cooldowns, giving them extra uses of that cooldown. Cannot support instant or triggered skills, or modify the skills of minions.Supported Skills have 50% less Cooldown Recovery Rate Supported Skills have twice as many Cooldown UsesPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.	Short Fuse IShort Fuse ISupport Category: Short Fuse Tier: 2 Cost & Reservation Multiplier: 115%Support Requirements: +5 StrSupports Skills which Detonate after some amount of time has elapsed, shortening the time before Detonation.Supported Skills have 40% less Detonation TimePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
III	Adhesive Grenades IIAdhesive Grenades IISupport, Grenade Category: Adhesive Grenades Tier: 3Support Requirements: +5 DexSupports Grenade Skills. Grenades from Supported Skills do not bounce, instead halting movement where they intially land.Supported Grenade Skills stop where they initially landPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.	Cooldown Recovery ICooldown Recovery ISupport Category: Cooldown Recovery Tier: 3 Cost & Reservation Multiplier: 130%Support Requirements: +5 DexSupports skills with Cooldowns, increasing the rate at which those Cooldowns Recover. Cannot modify the skills of minions.Supported Skills have 25% increased cooldown recovery ratePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.	ImmolateImmolateSupport, Fire, Payoff Category: Immolate Tier: 3Support Requirements: +5 StrSupports Attacks, granting them extra Fire damage against Ignited enemies but making them unable to Ignite enemies themselves.Supported Skills cannot Ignite Supported Attacks Gain 30% of Damage as extra Fire Damage against Ignited enemiesPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
IV	Cooldown Recovery IICooldown Recovery IISupport Category: Cooldown Recovery Tier: 4 Cost & Reservation Multiplier: 130%Support Requirements: +5 DexSupports skills with Cooldowns, increasing the rate at which those Cooldowns Recover. Cannot modify the skills of minions.Supported Skills have 30% increased cooldown recovery ratePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.	PayloadPayloadSupport, Grenade Category: Payload Tier: 4Support Requirements: +5 DexSupports Skills which fire Grenades, giving fired Grenades a chance to activate again, but lengthening their cooldowns.Supported Skills have 70% reduced Cooldown Recovery Rate Grenades fired by Supported Skills have 50% chance to activate a second timePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.	Short Fuse IIShort Fuse IISupport Category: Short Fuse Tier: 4 Cost & Reservation Multiplier: 115%Support Requirements: +5 StrSupports Skills which Detonate after some amount of time has elapsed, massively shortening the time before Detonation at the cost of Damage.Supported Skills have 80% less Detonation Time Supported Skills deal 30% less DamagePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
V	Fire Penetration IIFire Penetration IISupport, Fire Category: Fire Penetration Tier: 5 Cost & Reservation Multiplier: 120%Support Requirements: +5 StrSupports any skill that Hits enemies, making those Hits ignore enemy Fire resistance.Hits from Supported Skills ignore enemy Fire ResistancePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.	Long Fuse IILong Fuse IISupport Category: Long Fuse Tier: 5Support Requirements: +5 StrSupports Skills which have a Detonation Time, causing those Skills to have much higher Detonation Time and detonation damage.Supported Skills have 70% increased Detonation Time Grenades from Supported Skills cannot explode before the end of their Detonation Time Detonations from supported Skills deal 35% more DamagePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.	Second Wind IIISecond Wind IIISupport Category: Second Wind Tier: 5 Cost & Reservation Multiplier: 150%Support Requirements: +5 DexSupports skills with cooldowns, giving them extra uses of that cooldown and causing them to restore Life on use. Cannot support instant or triggered skills, or modify the skills of minions.Supported Skills have 40% less Cooldown Recovery Rate Restore 2% of maximum Life on use per one second cooldown of Supported Skills Supported Skills have twice as many Cooldown UsesPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.

Item acquisition

Cluster Grenade has restrictions on where or how it can drop.

It can be obtained by engraving an Uncut Skill Gem.

Alternate skill effects

Cluster Grenade has the following alternate skill effects:

Item	Description

Version history

Version	Changes
0.3.0	Cluster Grenade: Primary Grenade Attack Damage is now 299-490% at Gem levels 13-20 (previously 199-327%). Mini Grenade Attack Damage is now 174-286% (from 137-225%). Now Fires exactly 18 Mini Grenades in a nova (previously 14), and Mini grenades are fired over a ~17% increased radius. Fixed a bug where Cluster Grenade's mini grenades could not generate Energy for Meta Gems.
0.2.0	Many Skills have had their base damage and/or damage growth per level rebalanced. Most of these changes are not specifically mentioned below as the changes are too widespread. The mana cost for all Attacks, Marks and Warcries has been reduced, most notably at higher Gem levels. Cluster Grenade's Mini Grenades Explosion Radius is now 1.4 metres (previously 1.2 metres).
0.1.0	Introduced to the game.