Update history:Spike Factory (Battles 2)

This is a list of changes to the Spike Factory in Bloons TD Battles 2 and Bloons TD Battles 2+ post-release.

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Tiers Changes
0-0-0 base tower
1-X-X Bigger Stacks and further upgrades
X-1-X Faster Production and further upgrades
X-X-1 Long Reach
X-X-2 Smart Spikes
  •   Base spike duration reduced ― 50s → 40s
X-4-X Spike Storm
X-5-X Carpet of Spikes
  •   Ability: spikes no longer affected by external pierce buffs
X-5-X Carpet of Spikes
  •   Carpet of Spikes attack: damage increased ― 3 → 6
  •   Carpet of Spikes attack: bonus MOAB-Class damage increased ― +4 → +8
Tiers Changes
5-X-X Super Mines
  •   Upgrade cost reduced ― $130,000 → $110,000
Spike Factory’s bottom path has potential but often is not the best option because it must be bought in advance to build up a decent pile. Since the bottom path is all about longer durations, we’ve increased the duration of the speed boost at the start of each round, allowing slightly beefier spike piles to be built up in the short term.
— Update notes
Tiers Changes
X-X-3 Long life spikes and further upgrades
  •   Start-of-round attack speed buff duration increased ― 2.5s → 6s
We’d love to see Spiked Mines get some more use, and hopefully this sizeable pierce and radius buff with help with that.
— Update notes
Tiers Changes
4-X-X Spiked Mines
5-X-X Super Mines
  •   Explosion pierce increased ― 40 → 60
  •   Explosion blast radius increased ― 19 → 28

Version 4.2.1 (OTA update 2)

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As we describe in Bonnie's balance changes, the BEAST is proving to be much easier to pop than we anticipated. The Spike Factory is the worst offender for this and the Spike Storm Ability is guaranteed to instantly vaporise[sic] the BEAST. We prefer not to add special exceptions to the rules but in this case we feel it's warranted as trying to nerf the Spike Factory so that it does a fair amount of damage to the BEAST would make it unfairly weaker against everything else.
— Update notes
Tiers Changes
X-3-X MOAB SHREDR and further upgrades
  •   No longer deals bonus MOAB-Class damage to Bonnie's B.E.A.S.T.
Super Mines is by far the least used of Spike Factory’s tier 5 upgrades, overshadowed by Carpet of Spikes and Permaspike. We are making it more affordable while also buffing its pierce to make it more capable of dealing with its main weakness of tight ZOMGs.
— Update notes
Tiers Changes
5-X-X Super Mines
  •   Upgrade cost reduced ― $110,000 → $90,000
  •   Explosion Pierce increased ― 60 → 80
Spike Factory is getting a lot of use right now in several different popular strategies. Similar to how we buffed the Spiked Mines upgrade in 4.3, we are nerfing the bottom path to encourage different uses of the tower.
— Update notes
Tiers Changes
X-X-3 Long life spikes
  •   Upgrade cost increased ― $750 → $1,200
This price increase makes microing the Spike Storm ability more expensive while still keeping the overall power of the tower intact.
— Update notes
Tiers Changes
X-4-X Spike Storm
  •   Upgrade cost increased ― $5,200 → $6,200
edit