Thunder Bot is one of the bots you can buy in The Tower. When it activates, it stuns enemies in an area around it, then applies a slowing linger effect once the stun ends. Both the stun and the linger are only 50% effective against Bosses and Elites, so keep that in mind when planning around tough waves.
Description
Thunder Bot stuns enemies in an area around the bot when it activates. Once the stun ends, affected enemies are slowed by a linger effect. Both the stun and the linger are 50% effective against Bosses and Elites.
Unlocking/Upgrading
Like all bots, Thunder Bot is unlocked and upgraded through the Event Shop menu. The medal cost to unlock it depends on how many other bots you have already bought. Each of its three upgrades starts at a base cost of 100 medals and rises by 40 medals per level.
Duration
The Duration upgrade increases how long enemies are stunned. It has 20 levels.
Cooldown
Cooldown is the time between the bot's activations. It starts at 120 seconds and the upgrade has 15 levels.
Linger
The Linger upgrade increases the slow percentage of the linger effect. It starts at 20% and has 20 levels.
Range
The Range upgrade increases the area the bot covers while active. Range is amplified by your tower range, so it scales with your tower's range stat. It has 15 levels.
Cost
The cost table below shows the medal cost for each upgrade level.
| Level | Cost | Duration | Cooldown | Linger | Range |
|---|---|---|---|---|---|
| 1 | 100 | 5.5 | 117 | 23% | 28 |
| 2 | 140 | 6.0 | 114 | 26% | 31 |
| 3 | 180 | 6.5 | 111 | 29% | 34 |
| 4 | 220 | 7.0 | 108 | 32% | 37 |
| 5 | 260 | 7.5 | 105 | 35% | 40 |
| 6 | 300 | 8.0 | 102 | 38% | 43 |
| 7 | 340 | 8.5 | 99 | 41% | 46 |
| 8 | 380 | 9.0 | 96 | 44% | 49 |
| 9 | 420 | 9.5 | 93 | 47% | 52 |
| 10 | 460 | 10.0 | 90 | 50% | 55 |
Labs — Thunder Bot Cooldown
This lab is unlocked in Milestones at tier 5 wave 70. It reduces Thunder Bot's cooldown by 1 second per level, with 25 levels for a total 25-second reduction. Note that this lab is mentioned in the Footguns section, so check that before investing heavily.
| 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 |
Labs — Thunder Bot Linger Time
This lab is unlocked in Milestones at tier 10 wave 60. It increases the duration of the linger effect by 0.5 seconds per level, with 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 |