Thunder Bot

Stuns enemies in an area around the bot. Once stun ends enemies will be slowed down for 3s by the linger effect.

Stun and Linger are 50% effective against Bosses and Elites.

Unlocking/Upgrading

Like all bots, Thunder Bot is unlocked and upgraded in the Event Shop menu. The unlock cost will depend on how many other bots have been bought. Each of the 3 Thunder bot upgrades start with a base upgrade cost of 100 medals and increase by 40 medals each level.

• Duration: Increase the duration enemies are stunned. Has 20 levels.
• Cooldown: The amount of time between initial activations. Cooldown starts at 120 seconds and has 15 levels.
• Linger: A portion of the stun effect will remain for 3 seconds after thunder bot's duration. Starts at 20% and has 20 levels.
• Range: Increases the range the bot covers when active. Range is amplified by tower range. Has 15 levels.

Thunder Bot Upgrade Costs

Level	Cost	Cumulative Cost	Duration	Cooldown	Linger	Range
1	100	100	5.5	117	23%	28
2	140	240	6.0	114	26%	31
3	180	320	6.5	111	29%	34
4	220	540	7.0	108	32%	37
5	260	800	7.5	105	35%	40
6	300	1100	8.0	102	38%	43
7	340	1440	8.5	99	41%	46
8	380	1820	9.0	96	44%	49
9	420	2240	9.5	93	47%	52
10	460	2700	10.0	90	50%	55
11	500	3200	10.5	87	53%	58
12	540	3740	11.0	84	56%	61
13	580	4320	11.5	81	59%	64
14	620	4940	12.0	78	62%	67
15	660	5600	12.5	75	65%	70
16	700	6300	13.0		68%
17	740	7040	13.5		71%
18	780	7820	14.0		74%
19	820	8640	14.5		77%
20	860	9500	15.0		80%

Labs

Thunder Bot Frequency

Lab Bot Research Unlocks at Tier 5 Wave 70 Milestone. Unlocks Thunder Bot Cooldown which reduces the bot Cooldown by 1 second for each level. Has 25 levels for a 25 second reduction to cooldown.

Level	Time	Cost	Value
1	1d 14h 53m	30.00M	-1
2	1d 23h 14m	60.05M	-2
3	2d 7h 47m	91.60M	-3
4	2d 16h 54m	132.15M	-4
5	3d 3h 4m	201.20M	-5
6	3d 14h 56m	336.25M	-6
7	4d 5h 11m	598.80M	-7
8	4d 22h 39m	1.08B	-8
9	5d 20h 13m	1.91B	-9
10	6d 22h 51m	3.25B	-10
11	8d 7h 37m	5.33B	-11
12	9d 23h 39m	8.41B	-12
13	12d 0h 6m	12.83B	-13
14	14d 10h 17m	18.98B	-14
15	17d 7h 29m	27.34B	-15
16	20d 17h 6m	38.45B	-16
17	24d 16h 35m	52.94B	-17
18	29d 7h 26m	71.53B	-18
19	34d 15h 14m	95.05B	-19
20	40d 17h 36m	124.40B	-20
21	47d 16h 12m	160.63B	-21
22	55d 12h 46m	204.87B	-22
23	64d 9h 5m	258.37B	-23
24	74d 6h 59m	322.54B	-24
25	85d 8h 22m	398.88B	-25

Thunder Bot Linger Time

Lab Bot Research Unlocks at Tier 5 Wave 70 Milestone. Increase the duration of the linger effect by 0.5s per level. Has 20 levels for a total of 13 seconds.

Level	Time	Cost	Value
1	8d 8h 0m	100.00B	3.50
2	9d 14h 0m	150.00B	4.00
3	11d 0h 30m	225.00B	4.50
4	12d 16h 10m	337.50B	5.00
5	14d 13h 48m	506.25B	5.50
6	16d 18h 16m	759.38B	6.00
7	19d 6h 36m	1.14T	6.50
8	22d 4h 0m	1.71T	7.00
9	25d 11h 48m	2.56T	7.50
10	29d 7h 34m	3.84T	8.00
11	33d 17h 6m	5.77T	8.50
12	38d 18h 28m	8.65T	9.00
13	44d 14h 2m	12.97T	9.50
14	51d 6h 33m	19.46T	10.00
15	58d 23h 8m	29.19T	10.50
16	67d 19h 24m	43.79T	11.00
17	77d 23h 31m	65.68T	11.50
18	89d 16h 15m	98.53T	12.00
19	103d 3h 5m	147.79T	12.50
20	118d 14h 21m	221.68T	13.00

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