The Tower - Idle Tower Defense Wiki and Guides
Build Your Perfect Tower of Defense

Extra Orb Card

From The Tower - Idle Tower Defense Wiki and Guides
Fully Upgraded Extra Orb Card


Extra Orb Cards.pngCard adds additional spinning orb with a speed of a card that destroys enemies on contact (except bosses, elites, protectors and protected enemies).

Use[edit | edit source]

Will add additional orb(s) that spin in the opposite direction than the normal orbs. Extra Orbs have their own radius that can be adjusted after the Lab Research is completed.

Can be useful for the Blender build, but mostly used for the Orb Devo Build in the later game for taking out enemies faster.

Orb speed Workshop upgrade affects the Extra Orb. Extra Orb speed is the workshop value + the card value. Researching Extra Extra Orb reduces extra orb speed by 5% and the 2nd Extra Extra Orb reduces speed by an additional 5% for a total of a 10% Orb speed reduction. Since orb speed is in rotations per minute, adjusting the orbs with the Extra Orb Adjuster lab to be farther away from the tower will cause them to speed up to complete the rotations in the same amount of time.

Extra Orb Upgrades[edit | edit source]

Extra Orb increases the extra orb rotation speed as it gains additional star on the upgrade.

Extra Orb Card Star level upgrades
Star Level Extra Orb Rotation Speed
1 .30
2 .40
3 .50
4 .60
5 .70
6 .80
7 .90

Extra Orb Mastery[edit | edit source]

Adds a coin bonus to enemies hit by orbs and unlocks Coin Orb research.

Unlock Cost: 750 Power Stone.pngStones.

Mastery Ability[edit | edit source]

Coin Orb Enemies hit by orbs drop bonus coins x1.04%

Mastery Research[edit | edit source]

Increases Card Mastery bonus coins from orbs.

Lab.pngLab Card Research Unlocks after activating its mastery. Increases Extra Orb.pngExtra Orb's Card Mastery bonus coins from orbs. Has 9 levels.

Level Value Time Gems Coins Total Time Total Gems Total Coins
1 1.08 20 days, 20h, 0m, 0s 2.53K 1.10q 20 days, 20h, 0m, 0s 2.53K 1.10q
2 1.12 31 days, 6h, 0m, 0s 3.64K 1.30q 52 days, 2h, 0m, 0s 6.18K 2.40q
3 1.16 41 days, 16h, 0m, 0s 4.42K 2.00q 93 days, 18h, 0m, 0s 10.59K 4.40q
4 1.20 52 days, 2h, 0m, 0s 5.19K 3.40q 145 days, 20h, 0m, 0s 15.78K 7.80q
5 1.24 62 days, 12h, 0m, 0s 5.96K 5.60q 208 days, 8h, 0m, 0s 21.74K 13.40q
6 1.28 72 days, 22h, 0m, 0s 6.73K 7.70q 281 days, 6h, 0m, 0s 28.48K 21.10q
7 1.32 83 days, 8h, 0m, 0s 7.51K 9.10q 364 days, 14h, 0m, 0s 35.98K 30.20q
8 1.36 93 days, 18h, 0m, 0s 8.24K 9.80q 1 years, 93 days, 8h, 0m, 0s 44.22K 40.00q
9 1.40 104 days, 4h, 0m, 0s 8.89K 10.00q 1 years, 197 days, 12h, 0m, 0s 53.11K 50.00q

Lab[edit | edit source]

Lab Researches that will improve Extra Orb

Orb Boss Hit[edit | edit source]

Lab.pngLab Defense Research Unlocks at Tier 6 Wave 750 Milestone. The lab allows orbs to deal damage to bosses for a % of their total health. There are 10 levels.

Level Time Cost Value
1 1d  3h 46m 800,000,000 0.20%
2 1d 12h  7m 1,210,000,000 0.40%
3 1d 20h 40m 1,670,000,000 0.60%
4 2d  5h 47m 2,330,000,000 0.80%
5 2d 15h 58m 3,370,000,000 1.00%
6 3d  3h 49m 5,060,000,000 1.20%
7 3d 18h  5m 7,730,000,000 1.40%
8 4d 11h 32m 11,730,000,000 1.60%
9 5d  9h  6m 17,510,000,000 1.80%
10 6d 11h 45m 25,540,000,000 2.00%

Extra Orb Adjuster[edit | edit source]

Lab.pngLab Card Research Unlocks at Tier 6 Wave 50 Milestone. Allows Orbs from the Extra Orb.pngCards/Extra Orb card to have their range adjusted during rounds. Orbs can be adjusted between 60m and % of the tower range. If tower range is lower than 60m, Extra Orbs cannot be adjusted. The orb adjuster does not work while a boss is alive. The max range now scales with tower range, however there is minimal difference between where max is now and where max was prior to the change.

Level Time Cost Value
1 2d  1h 59m 1,500,000 Unlocked

Extra Extra Orbs[edit | edit source]

Lab.pngLab Card Research Unlocks at Tier 6 Wave 50 Milestone. Increases the number of orbs when the Extra Orb card is equipped. There are 2 levels.

Level Time Cost Value
1 1d 14h 53m 25,000,000 +1
2 5d 18h 53m 900,000,000 +2
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