Orbs rotate around the Tower and instantly kill normal enemies. They can be upgraded to increase the number of Orbs, their rotation speed and get additional set of Orbs using the Card.
Orbs will kill Enemies instantly with the exception of Bosses, Elites, Protectors and enemies protected by Protectors. Bosses can receive damage by orbs using the Orb Boss Hit lab up to 2% of maximum health per hit.
In the Tournaments Heat can prevent Orbs from instantly killing enemies. The heat level will determine the damage orbs do to the normal enemies. Bosses will continue taking damage based on Orb Boss Hit lab.
Unlocked in the 
Workshop for 15000 coins after Knockback. Unlocks Orb Speed and Orbs in the workshop. Workshop orbs distance will adjust based on tower range. The adjustment is lower than a 1:1 adjustment so orbs will be further inside the tower range as tower range gets larger.
Speed of the orbs defending your tower. There are 38 upgrades with base value of 0.4. Each level increases the speed by 0.15 for a maximum value of 6.10. Orb speed is in rotations per minute.
| Level
|
Value
|
Cost
|
Total Cost
|
|---|
| 1
|
0.55
|
125.00
|
125.00
|
| 2
|
0.70
|
163.00
|
288.00
|
| 3
|
0.85
|
214.00
|
502.00
|
| 4
|
1.00
|
283.00
|
785.00
|
| 5
|
1.15
|
374.00
|
1.16K
|
| 6
|
1.30
|
490.00
|
1.65K
|
| 7
|
1.45
|
635.00
|
2.28K
|
| 8
|
1.60
|
811.00
|
3.10K
|
| 9
|
1.75
|
1.02K
|
4.12K
|
| 10
|
1.90
|
1.27K
|
5.38K
|
| 11
|
2.05
|
1.55K
|
6.93K
|
| 12
|
2.20
|
1.87K
|
8.81K
|
| 13
|
2.35
|
2.24K
|
11.05K
|
| 14
|
2.50
|
2.65K
|
13.70K
|
| 15
|
2.65
|
3.11K
|
16.81K
|
| 16
|
2.80
|
3.61K
|
20.42K
|
| 17
|
2.95
|
4.17K
|
24.59K
|
| 18
|
3.10
|
4.77K
|
29.36K
|
| 19
|
3.25
|
5.43K
|
34.79K
|
| 20
|
3.40
|
6.14K
|
40.93K
|
| 21
|
3.55
|
6.91K
|
47.83K
|
| 22
|
3.70
|
7.73K
|
55.56K
|
| 23
|
3.85
|
8.61K
|
64.18K
|
| 24
|
4.00
|
9.56K
|
73.73K
|
| 25
|
4.15
|
10.56K
|
84.29K
|
| 26
|
4.30
|
11.63K
|
95.92K
|
| 27
|
4.45
|
12.76K
|
108.67K
|
| 28
|
4.60
|
13.95K
|
122.62K
|
| 29
|
4.75
|
15.21K
|
137.83K
|
| 30
|
4.90
|
16.54K
|
154.37K
|
| 31
|
5.05
|
17.93K
|
172.31K
|
| 32
|
5.20
|
19.40K
|
191.71K
|
| 33
|
5.35
|
20.94K
|
212.65K
|
| 34
|
5.50
|
22.55K
|
235.20K
|
| 35
|
5.65
|
24.23K
|
259.43K
|
| 36
|
5.80
|
25.99K
|
285.42K
|
| 37
|
5.95
|
27.82K
|
313.24K
|
| 38
|
6.10
|
29.73K
|
342.98K
|
Number of orbs defending your tower. There are 4 levels that add one orb each level for a maximum of 4 orbs. Using the orb perk, the maximum orbs can become 6 orbs.
| Level
|
Value
|
Cost
|
Total Cost
|
|---|
| 1
|
1
|
3.00K
|
3.00K
|
| 2
|
2
|
20.00K
|
23.00K
|
| 3
|
3
|
120.00K
|
143.00K
|
| 4
|
4
|
350.00K
|
493.00K
|
TBA
Extra Orb card adds additional set of orbs rotating around the tower in the opposite direction than the normal orbs.
Extra Orbs Range can be adjusted after the Lab research will be comleted.
Orb speed affects the Extra Orb card. 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.
The Labs for Orb Speed, Orb Boss Hit, Extra Orb Adjuster and Extra Extra Orbs are unlocked in Milestones.
Lab Defense Research Unlocks at Tier 3 Wave 80 Milestone. Increases the Speed of orbs defending your tower. Adds to the Workshop Orb Speed Upgrades.
| Level
|
Time
|
Cost
|
Value
|
|---|
| 1
|
0d 1h 19m
|
15,000
|
0.10
|
| 2
|
0d 3h 1m
|
22,500
|
0.20
|
| 3
|
0d 4h 52m
|
105,740
|
0.30
|
| 4
|
0d 7h 8m
|
474,530
|
0.40
|
| 5
|
0d 10h 10m
|
1,500,000
|
0.50
|
| 6
|
0d 14h 17m
|
3,700,000
|
0.60
|
| 7
|
0d 19h 56m
|
7,780,000
|
0.70
|
| 8
|
1d 3h 31m
|
14,620,000
|
0.80
|
| 9
|
1d 13h 32m
|
25,250,000
|
0.90
|
| 10
|
2d 2h 28m
|
40,900,000
|
1.00
|
| 11
|
2d 18h 50m
|
62,990,000
|
1.10
|
| 12
|
3d 15h 12m
|
93,080,000
|
1.20
|
| 13
|
4d 16h 7m
|
132,970,000
|
1.30
|
| 14
|
5d 22h 10m
|
184,610,000
|
1.40
|
| 15
|
7d 9h 59m
|
250,140,000
|
1.50
|
| 16
|
9d 4h 12m
|
331,900,000
|
1.60
|
| 17
|
11d 5h 26m
|
432,430,000
|
1.70
|
| 18
|
13d 14h 22m
|
554,440,000
|
1.80
|
| 19
|
16d 7h 40m
|
700,850,000
|
1.90
|
| 20
|
19d 10h 10m
|
874,760,000
|
2.00
|
Lab 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%
|
Lab Card Research Unlocks at Tier 6 Wave 50 Milestone. Allows Orbs from the Cards/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
|
Lab 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
|
