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Obstacles are trees, logs and rocks that are randomly placed in your village. You start with about 40 obstacles around your village. You can remove them if you have an available Builder and a small amount of Gold or Elixir. Gold is used to remove rocks and Elixir to remove vegetation.

Undecorated Obstacles

Mushroom Bush Trunk (1) Trunk (2) Trunk (Fallen) Tree (Small)
MediumTree LargeTree
Tree (Medium) Tree (Large) Stone (Small 1) Stone (Small 2) Stone (Small 3) Stone (Small 4)
Stone (Pillar) Stone (Large) Tombstone Dark Tombstone Gem Box

Halloween Decorated Obstacles

Halloween Mushroom (2012) Halloween Mushroom (2013) Halloween Bush Halloween Trunk (1) Halloween Trunk (2)
HalloweenMediumTree HalloweenLargeTree
Halloween Trunk (Fallen) Halloween Tree (Medium) Halloween Tree (Large) Halloween Headstone (2014)

Winter Decorated Obstacles

Winter Mushroom Winter Trunk (1) Winter Trunk (2) Winter Trunk (Fallen) Winter Tree (Small) Winter Tree (Medium)
WinterLargeTree2012 WinterLargeTree2013
Winter Tree (Large 2012) Winter Tree (Large 2013) X-Mas Tree (2012) X-Mas Tree (2013) X-Mas Tree (2014)

  • Summary
    • Each obstacle that is removed will yield 0, 1, 2, 3, 4, 5, or 6 Gems. The distribution is not random and follows the following repeating sequence: 6, 0, 4, 5, 1, 3, 2, 0, 0, 5, 1, 0, 3, 4, 0, 0, 5, 0, 1, 0. This means on average, each obstacle cleared yields 2 Gems. This pattern does not include 25 gems yielded from the Gem Box, or the holiday themed obstacles like the Halloween Headstone (2014) which yields Elixir; the X-mas Tree (2012, 2013, and 2014) yields Gold instead.
    • Vegetation re-spawns at a rate of one item per eight hours, except if all the spaces in your village are totally filled. Furthermore, an obstacle will only spawn if there is a 1-tile buffer zone between the spaces in which it will spawn and another building or obstacle.
    • Rocks do not re-spawn once they are removed.
    • You can't place buildings on obstacles.
    • Since vegetation re-spawns, and removing one may yield Gems, removing vegetation regularly can be an unlimited (although slow) source of Gems.
    • Your village can have a maximum of 40 obstacles at one time.
    • There is an achievement called "Nice and Tidy" which gives players Experience and Gems for removing 10/50/500 obstacles.
    • Troops can be spawned beside and/or on top of obstacles.
    • After the Halloween 2014 update the required time to remove all obstacles except Mushrooms has been reduced.

  • Vegetation
    • When the game re-spawns an obstacle, the re-spawn weight represents the chance of that particular item being the one that appears.
    • Also, a new obstacle called the Gem Box was added, but quickly deleted due to a few glitches relating to how many Gems it gives. They have been added back into the game on April 9, 2014, the update that added Clan Wars.
Type Size Removal Time Experience Gained XP Removal Cost Elixir Re spawn Weight
Mushroom 2x2 10s 3 100 10%
Bush 2x2 10s 3 250 20%
Trunk (1) 2x2 10s 3 1,000 10%
Trunk (2) 2x2 10s 3 1,000 10%
Trunk (Fallen) 2x2 10s 3 1,000 20%
Tree (Small) 2x2 10s 3 2,000 20%
Tree (Medium) 3x3 15s 3 7,500 5%
Tree (Large) 3x3 15s 3 10,000 5%
Gem Box 2x2 30s 5 1,000

  • Rocks
    • Once rocks are removed, they do not reappear.
Type Size Removal Time Experience Gained XP Removal Cost Gold
Stone (Small 1) 2x2 10s 3 500
Stone (Small 2) 2x2 10s 3 500
Stone (Small 3) 2x2 10s 3 500
Stone (Small 4) 2x2 10s 3 500
Stone (Pillar) 2x2 15s 3 10,000
Stone (Large) 3x3 15s 3 20,000

  • Tombstones
    • Tombstones spawn when attacking Troops are killed. Tap to collect.
Type Size Removal Time Removal Benefit Event at which appears
Tombstone 1x1 Instant Gives 20 ElixirElixir Attacking or defending Elixir troop is killed.
Dark Tombstone 1x1 Instant Gives 1 Dark ElixirDark elixir Attacking or defending Dark Elixir troop is killed.

  • Gem Box
    • The Gem Box is a mysterious box packed with gems!
    • You can only have 1 gem box at any time in a village. Clearing the Gem Box costs 1,000 Elixir, takes 30 seconds to clear and will give you 25 gems. The gem box is rare but in the recent update they made them more common.

  • Special Obstacles
    • Note that all special obstacles (and the Gem Box) ignore the one-tile buffer zone rule that governs where normal vegetation can spawn. They can spawn in any 2x2 empty space within your village, though they tend toward spawning close to the outer edges of the field.
    • During the Winter 2012 Update, they added a X-Mas Tree that gives 30,000 Gold when cleared, which was then increased to 50,000. On 3 January 2013, Supercell indicated on the forums that people will get to keep their trees even after the winter theme is gone. The 2012 X-Mas Tree appears as a small tree with flashing colorful ornaments.
    • There's a 2012 edition of X-Mas Tree in the far left edge of the map in Gold Rush mission in Single Player Campaign in the line of trees that are surrounding the map.
    • During the Winter 2013 Update, they introduced another X-Mas Tree that gives 75,000 Gold when cleared. The 2013 X-Mas Tree appears as a small tree with golden garlands, a golden spikeball on top, and two skulls at the bottom of the tree.**During the Winter 2014 Update, Supercell introduced an X-Mas tree that not only gives 75,000 Gold when cleared, but randomly spawns wrapped presents worth 5,000 Elixir each when cleared. The 2014 tree is similar looking to the 2012 one, but is adorned with tinsel, candy canes as well as colored ornaments and flashing lights.
    • Video of X-Mas Tree (2012) being chopped down and the reward:
    • There's a special kind of Army Camp in the Goblin Gauntlet mission in Single Player Campaign that only consists of a camp fire with different surroundings that the one in the Army Camp, which is only 2x2. You can notice this by the other obstacles that are next to the camp fire. You can also drop troops over it since it is considered as an obstacle.
Type Size Removal Cost Removal Time Experience Gained XP Removal Reward Respawn Weight
X-Mas Tree (2012) 2x2 25,000Gold 30s 5 50,000Gold 2%
X-Mas Tree (2013) 2x2 25,000Gold 30s 5 75,000Gold 2%
Halloween Headstone (2014) 2x2 25,000Elixir 30s 5 75,000Elixir 2%
X-Mas Tree (2014) 2x2 25,000Gold 30s 5 75,000Gold 2%
Present (X-Mas Tree 2014) 1x1 0 Instant 0 5,000Elixir N/A

  • Trivia
    • The rainbow effect on the Gem Box might be a reference to the saying "There's a pot of gold at the end of the rainbow".
    • If no gems are purchased, earned through achievements or spent on various purposes, 1623 obstacles (not including gem boxes) are needed to clear to buy the 3rd, 4th and 5th builder huts which cost 3500 gems in total, which roughly translates to 528 days (counting from the first obstacle removed and assuming that the village always contain less than 40 obstacles, in order for new obstacles to spawn).
GEMS Everything you Need to Know - Clash of Clans - Tips and Strategy-017:19

GEMS Everything you Need to Know - Clash of Clans - Tips and Strategy-0

Defensive Buildings Cannon • Archer Tower • Mortar • Air Defense • Wizard Tower • Hidden Tesla • X-Bow • Inferno Tower • Walls
Traps: Bomb • Spring Trap • Giant Bomb • Air Bomb • Seeking Air Mine • Skeleton Trap
Resource Buildings Gold Mine • Elixir Collector • Dark Elixir Drill • Gold Storage • Elixir Storage • Dark Elixir Storage • Builder's Hut
Army Buildings Army Camp • Barracks • Dark Barracks • Laboratory • Spell Factory • Barbarian King Altar • Archer Queen Altar
Other Buildings Town Hall • Clan Castle • Decorations • Obstacles

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