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GemMine7

"Gem Mines access a rare deposit of this highly valuable resource! Mining gems is slow and hard work."


GemMine Ruin GemMine1 GemMine2 GemMine3
Ruin Level 1 Level 2 Level 3
GemMine4 GemMine5 GemMine6 GemMine7
Level 4 Level 5 Level 6 Level 7

  • Summary
    • The Gem Mine can be unlocked in the Builder's Base. It requires Builder's Hall level 3 to be repaired.
    • The Gem Mine, as its name suggests, produces gems, albeit very slowly. These mined Gems are then stored until the player collects them or the storage fills.

  • Upgrade Differences
    • Gem Mines undergo a significant visual change at level 3.
      • In its initial ruined state, it appears as a derelict, overgrown cave. A Gem insignia on a wooden hexagon on the side of the rocks can be found on the Mine's side. There are large broken wooden planks covering the entrance, and a broken box. There are also Gems scattered around the Mine.
      • When reconstructed, the Gem Mine is a cave-like structure with a wooden arch supported by ropes at the entrance. The Gem insignia is present on the side of the Mine, and a rail conveyor extends out of the cave, into a box containing Gems. Outside the cave is a torch.
      • At level 2, the Gem Mine's arch and base is reinforced by metal.The grass on the side of the Gem Mine has disappeared.
      • At level 3, the top of the cave is replaced by an open roof and a pulley system. More wooden planks are added to the sides of the opened roof, in order to support the pulley. Additional reinforcing metal plates appear at the top of the entrance.
      • At level 4, the reinforcing metal plates change to a bronze-colored scheme. A second pulley is also added.
      • At level 5, the reinforcing wooden structure now extends to the back of the cave, and additional bronze plates are added to the back side of the roof.
      • At level 6, the pulley system becomes bronze, with wood covering the roof.
      • At level 7, a bar is fixed to the roof, and it now suspends the pulley system. Ropes can be seen between the two pulleys, and the roof now appears to be made of stone.

  • Defensive Strategy
    • This building serves no purpose on defense, so placing it on the outside to protect your defenses can be good.
    • Placing it in the corner can stall your opponent from getting three stars on your base.
    • This building has low hitpoints, so it is better to place it outside of the walls or the base.

  • Trivia
    • The Gem Mine is the only building that produces Gems.
    • There are no storages for the Gems except for the Gem Mine due to your unlimited Gem inventory.
    • Unlike the Gold Mine, there is no cart that delivers the Gems to the surface, instead, a conveyor belt delivers the Gems to the surface.
    • When the Gem Mine is full, the Gems are in a large, unorganized pile right outside the entrance of the Gem Mine.

  • Icon Descriptions
    Icon InfoTapping this icon displays information about the Gem Mine, such as Level, Damage Per Second, Hitpoints, Range, Damage Type, Targets and Favorite Target.
    Icon InfoTapping this icon displays information about the Gem Mine, such as Level, Re-arm cost, Damage Type and Targets.
    Icon InfoTapping this icon displays information about the Gem Mine, such as Level, Damage Type and Targets.
    Icon InfoTapping this icon displays information about the Gem Mine, such as Level, Capacity, Production and Hitpoints.
    Icon InfoTapping this icon displays information about the Gem Mine, such as Level, Capacity, Production and Hitpoints.
    Icon InfoTapping this icon displays information about the Gem Mine, such as Level, Storage Capacity and Hitpoints.
    Icon InfoTapping this icon displays the Hut's Hitpoints.
    Icon InfoTapping this icon displays information about the Gem Mine, such as Level, Total Troop Capacity and Hitpoints.
    Icon InfoTapping this icon displays the Army Camp's Hitpoints.
    Icon InfoTapping this icon displays information about the Gem Mine, such as Level, Training Capacity and Hitpoints.
    Icon InfoTapping this icon displays information about the Gem Mine, such as Level and Hitpoints.
    Icon InfoTapping this icon displays information about the Gem Mine, such as Level and Hitpoints.
    Icon InfoTapping this icon displays information about the Gem Mine, such as Level, Spell Capacity and Hitpoints.
    Icon InfoTapping this icon displays information about the Gem Mine, such as Level, Elixir Storage Capacity, Gold Storage Capacity and Hitpoints.
    Icon InfoTapping this icon displays information about the Gem Mine, such as Level, Troop Capacity, Hitpoints and Troops inside.
    Icon InfoTapping this icon displays information about the Wall, such as Hitpoints.
    Icon InfoTapping this icon displays information about the Wall, such as Hitpoints.
    Icon InfoTapping this icon displays information about the Gem Mine, such as Level, Damage per Second, Hitpoints, Regeneration Time and Ability Level.
    Icon InfoTapping this icon displays information about the Gem Mine, such as Level, Damage per Second, Hitpoints, Regeneration Time and Ability Level.
    Icon UpgradeTapping this icon begins upgrading the Gem Mine to the next level, if you have enough resources and a free Builder. When the Gem Mine is at maximum level, this icon is not shown.
    Icon FinishNowTapping this icon, which is displayed only while an upgrade is in progress, instantly finishes that upgrade at the cost of the displayed number of Gems.
    Icon CancelTapping this icon, which is displayed only while an upgrade is in progress, cancels the current upgrade and refunds half of the upgrade cost.
    Icon UpgradeTapping this icon begins upgrading the Gem Mine to the next level, if you have enough resources and a free Master Builder. When the Gem Mine is at maximum level, this icon is not shown.
    Icon FinishNowTapping this icon, which is displayed only while an upgrade is in progress, instantly finishes that upgrade at the cost of the displayed number of Gems.
    Icon CancelTapping this icon, which is displayed only while an upgrade is in progress, cancels the current upgrade and refunds half of the upgrade cost.
    Icon GroundTapping this icon switches the Gem Mine attack mode to attack air units. This icon is only displayed while the Gem Mine is in Ground mode.
    Icon AirTapping this icon switches the Gem Mine attack mode to attack ground units. This icon is only displayed while the Gem Mine is in Air mode.
    Icon GroundTapping this icon switches the Gem Mine to be deployed as an air unit. This icon is only displayed while the Gem Mine is at full health and in Ground mode.
    Icon AirTapping this icon switches the Gem Mine to be deployed as a ground unit. This icon is only displayed while the Gem Mine is at full health and in Air mode.
    Icon ReArmTapping this icon re-arms this Gem Mine. This icon is only displayed after this Gem Mine has been triggered during an enemy attack.
    Icon ReArmAllTapping this icon re-arms all Traps. This icon is only displayed when one or more of your Traps have been triggered in a previous enemy attack.
    IconAllTrapsArmedThis icon informs you that all Traps are armed. It is not tappable, and replaces the re-arm icons.
    IconLoadXBowTapping this icon reloads this X-Bow with Elixir. This icon only appears if this X-Bow is not fully loaded.
    IconLoadAllXBowsTapping this icon reloads all X-Bows with Elixir. This icon only appears if one or more X-Bows are not fully loaded.
    IconLoadEagleTapping this icon reloads the Eagle Artillery with Elixir. This icon only appears if the player owns the Eagle Artillery but not an X-Bow, and if the Eagle Artillery is not fully loaded.
    IconLoadXBowEagleTapping this icon reloads all X-Bows and the Eagle Artillery with Elixir. This icon only appears if at least one of these buildings is not fully loaded, and will replace the icons above if the player has both an X-Bow and the Eagle Artillery.
    IconFullyLoadedXBowsThis icon informs you that all X-Bows are fully loaded. It is not tappable, and replaces the Load icons.
    IconFullyLoadedEagleThis icon informs you that the Eagle Artillery is fully loaded. It is not tappable, and only appears if the player owns the Eagle Artillery but not an X-Bow.
    IconFullyLoadedXBowEagleThis icon informs you that all X-Bows and the Eagle Artillery are fully loaded. It is not tappable, and replaces the icon above if the player has both an X-Bow and the Eagle Artillery.
    Icon GroundTapping this icon switches the X-Bow attack mode to attack both ground and air units. This icon is only displayed while the X-Bow is in Ground mode.
    Icon AirGroundTapping this icon switches the X-Bow attack mode to attack ground units only. This icon is only displayed while the X-Bow is in Air and Ground mode.
    IconLoadInfernoTapping this icon reloads this Inferno Tower with Dark Elixir. This icon only appears if this Inferno Tower is not fully loaded.
    IconLoadAllInfernosTapping this icon reloads all Inferno Towers with Dark Elixir. This icon only appears if one or more Inferno Towers are not fully loaded.
    Icon FullyLoadedDarkElixirThis icon informs you that all Inferno Towers are fully loaded. It is not tappable, and replaces the Load icons.
    Icon SingleTapping this icon switches the Inferno Tower attack mode to attack multiple enemies. This icon is only displayed while the Inferno Tower is in Single attack mode.
    Icon MultipleTapping this icon switches the Inferno Tower attack mode to attack a single enemy. This icon is only displayed while the Inferno Tower is in Multiple attack mode.
    IconLoadEagleTapping this icon reloads the Eagle Artillery with Elixir. This icon only appears if the Eagle Artillery is not fully loaded.
    IconFullyLoadedEagleThis icon informs you that the Eagle Artillery is fully loaded. It is not tappable, and replaces the Load icon.
    Icon Boost1Tapping this icon boosts your Gold production for 1 day at the cost of the displayed amount of Gems.
    Icon BoostAllTapping this icon boosts your Gold production of all the Gem Mines for 1 day at the cost of the displayed amount of Gems.
    Icon CollectGoldTapping this icon collects the uncollected Gold from the Gem Mine.
    Icon NoCollectGoldThis icon informs you that you don't have Gold to be collected from your Gem Mine.
    Icon Boost1hTapping this icon boosts your troop training for 1 hour, reducing the time required to train troops by a factor of four for the duration of the boost.
    Icon TrainTroopsTapping this icon opens up the troop training interface, allowing you to train troops.
    Icon TrainTroopsTapping this icon opens up the troop training interface, allowing you to train troops.
    Icon ResearchTapping this icon opens up the Laboratory interface, allowing you to upgrade your troops' levels.
    Icon ResearchTapping this icon opens up the Star Laboratory interface, allowing you to upgrade your troops' levels.
    Icon Boost1hTapping this icon boosts your spell creation for 1 hour, reducing the time required to create spells by a factor of four for the duration of the boost.
    Icon BrewSpellsTapping this icon opens up the Gem Mine's interface, allowing you to brew spells.
    Icon GuardTapping this icon puts the Gem Mine to sleep. This icon only appears when the Gem Mine is at full health and is in Guard mode.
    Icon SleepTapping this icon awakens the Gem Mine, whom will then help guard your village. This icon only appears when the Gem Mine is at full health and is in Sleep mode.
    Icon HealTapping this icon instantly heals the Gem Mine for the displayed amount of Gems. This icon only appears when the Gem Mine is currently regenerating health on the Altar.
    Icon Boost1hTapping this icon boosts the Gem Mine's regeneration speed for 1 hour, reducing the time required to regenerate the Gem Mine by a factor of four for the duration of the boost.
    Icon HealTapping this icon instantly heals the Gem Mine for the displayed amount of Gems. This icon only appears when the Gem Mine is currently regenerating health on the Altar.
    Icon RequestTroopsTapping this icon requests troops from your fellow clan members. It will appear if your Clan Castle is not already full and the timer since your last request has elapsed.
    Icon RequestNowTapping this icon requests troops from your clan members without waiting for the timer at the cost of the displayed number of Gems. It will appear if your Clan Castle is not already full and the timer since your last request is still counting down.
    Icon CastleFullThis icon informs you that your Clan Castle is full of troops and spells. It will replace both Request icons if the Clan Castle is full.
    Icon ClanTapping this icon displays information about your current clan.
    Icon TreasuryTapping this icon displays information about your Treasury.
    Icon SelectRowTapping this icon selects a row of Walls to move or rotate instead of a single Wall. The longest contiguous row of Walls will be selected.
    Icon RotateRowTapping this icon rotates the selected row of Walls. This icon is only displayed while you have multiple Walls selected.
    IconUpgradeRowTapping this icon upgrades all the upgradable Walls in the selected row to the next level, if you have enough resources and a free Builder. This icon is only displayed while you have multiple Walls selected, and if all the Walls selected are upgradable.
    Icon RotateRowTapping this icon rotates the selected row of Walls.
    IconUpgradeRowTapping this icon upgrades the selected Walls to the next level, if you have enough resources and a free Master Builder. When the selected Walls are at maximum level, this icon is not shown.
    Icon RotateTapping this icon rotates the Air Sweeper 45 degrees clockwise.
    Icon GearUpTapping this icon gears up the Gem Mine, if you have upgraded it enough to do so, have enough resources and a free Master Builder. If any Gem Mine is already geared up, this icon will not appear.
    Icon NoGearUpThis icon informs you that the Gem Mine cannot be geared up because it is insufficiently upgraded. Tapping this icon will tell you the required level to gear up this Gem Mine. If any Gem Mine is already geared up, this icon will not appear.
    Icon NormalTapping this icon switches the Gem Mine to Burst mode. This icon only appears when the Gem Mine is geared up, and is in Normal mode.
    Icon BurstTapping this icon switches the Gem Mine to Normal mode. This icon only appears when the Gem Mine is geared up, and is in Burst mode.
    Icon LongRangeTapping this icon switches the Archer Tower to Fast Attack mode. This icon only appears when the Archer Tower is geared up, and is in Long Range mode.
    Icon FastAttackTapping this icon switches the Archer Tower to Long Range mode. This icon only appears when the Archer Tower is geared up, and is in Fast Attack mode.
    Icon LongRangeTapping this icon switches the Archer Tower to Fast Attack mode. This icon only appears when the Archer Tower is in Long Range mode.
    Icon FastAttackTapping this icon switches the Archer Tower to Long Range mode. This icon only appears when the Archer Tower is in Fast Attack mode.
    Icon RotateTapping this icon rotates the Push Trap 90 degrees clockwise.
    Icon LootCartTapping this icon collects the loot from the Loot Cart.
    Boat iconTapping this icon switches between the Home Village and the Builder Base.
    Icon FreeBoostTapping this icon boosts timers in the Builder Base, by a factor of eight for a duration determined by the level of the Clock Tower. This icon is only displayed when a free boost is available.
    Icon BoostNowTapping this icon allows you to boost the Clock Tower before its free boost is available, at the cost of the displayed amount of Gems. This icon is only displayed when the Clock Tower's free boost is in cooldown.
    Icon RemoveGoldTapping this icon removes this obstacle using Gold, if you have enough Gold and a free Builder. This icon only appears if the obstacle is in the Home Village and requires Gold to remove.
    Icon RemoveElixirTapping this icon removes this obstacle using Elixir, if you have enough Elixir and a free Builder. This icon only appears if the obstacle is in the Home Village and requires Elixir to remove.
    Icon RemoveGoldBTapping this icon removes this obstacle using Gold, if you have enough Gold and a free Master Builder. This icon only appears if the obstacle is in the Builder Base and requires Gold to remove.
    Icon RemoveElixirBTapping this icon removes this obstacle using Elixir, if you have enough Elixir and a free Master Builder. This icon only appears if the obstacle is in the Builder Base and requires Elixir to remove.
    Icon CancelTapping this icon, which is displayed while the selected obstacle is being removed, cancels the removal of this obstacle and refunds the full cost.
    Icon SellTapping this icon sells the selected decoration for one-tenth of their price.
    Builder Hall Level 1 2 3 4 5 6 7
    Number Available 0 0 1 1 1 1 1
    Size Size
    3x3
    Level
    Level
    Build Cost
    ElixirB
    Build Time
    Stopwatch
    Experience Gained
    XP
    Capacity
    Gem
    Production Rate (per day)*
    Gem
    Production Time per Gem
    Stopwatch
    Time to Fill
    Stopwatch
    Catch-up Point** Hitpoints
    Hitpoint
    Builder Hall Level Required
    BuilderHall5
    1 120,000 1 hr 60 10 2.16 11h 6m 40s 4d 15h 6m 40s N/A 300 3
    2 180,000 2 hr 84 11 2.40 10h 4d 14h 18h 345 3
    3 240,000 6 hr 146 12 2.64 9h 5m 27s 4d 13h 5m 27s 2d 12h 397 4
    4 450,000 8 hr 169 13 2.88 8h 20m 4d 12h 20m 3d 16h 457 4
    5 1,000,000 10 hr 189 14 3.12 7h 41m 32s 4d 11h 41m 32s 5d 526 5
    6 1,500,000 12 hr 207 16 3.36 7h 8m 34s 4d 18h 17m 9s 6d 12h 605 6
    7 2,500,000 1 day 293 18 3.84 6h 15m 4d 16h 30m 7d 696 7

    * These values are exact values that are derived from the game files. In-game, this statistic is rounded down to one decimal place.

    ** The Catch-Up Point is the time at which the newly upgraded Gem Mine has equaled the total production of the mine had it not been upgraded - this does not consider recovering the cost of the Builder Elixir required to perform the upgrade.

    Caveat: The Catch-Up Point calculation assumes that the player collects all resources from the Gem Mine without allowing it to reach its storage capacity, as resource production ceases at that point. This is more of a concern at lower levels where the capacity is limited and Time to Fill is relatively short. If the player is unable to regularly collect and achieve the full potential of the collector, the Catch-Up Point is actually shorter and performing the upgrade becomes more advantageous.

    Builder Base Buildings
    Defensive Buildings CannonDouble CannonArcher TowerHidden TeslaFirecrackersCrusherGuard PostAir BombsMulti MortarRoasterGiant CannonMega TeslaWalls
    Traps: Push TrapSpring TrapMineMega Mine
    Resource Buildings Builder HallGold MineElixir CollectorGold StorageElixir StorageGem Mine
    Army Buildings Builder BarracksArmy CampStar LaboratoryBattle Machine Altar
    Other Buildings BoatDecorationsObstaclesClock Tower

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