Spike Production Building

Spike Production Building
Flash Tack Shooters and Spike Factories upgrades are unlocked in the Spike Production Building. Additional Special Buildings will be required before the most powerful upgrades can be researched. Prerequisites — Terrain requirements Cannot be built on: Lake Terrain, River Terrain Footprint 3×3 (1×1 tiles) Build cost  450 Power used  25 Build time 20 minutes XP for building  150

The Spike Production Building is an Upgrade Building in Bloons Monkey City. It enables upgrades for Spike Factories and, in the Flash version, Tack Shooters to be researched. In the multiplatform version, the Tack Production Building enables upgrades for Tack Shooters instead.

Research

Tack Shooter

Tier	Upgrade	Prerequisites	City Cash cost	Bloonstone cost	Time (minutes)	XP for researching
1	Faster Shooting	—	200	—	5	25
2	Even Faster Shooting	City Level 4	1,000	—	90	60
3	Tack Sprayer	City Level 10	6,000	20	1,440	350
4	Ring of Fire	City Level 18, Thermite Plant built	10,500	50	1,440	700
1	Extra Range Tacks	—	240	—	15	25
2	Super Range Tacks	City Level 5	1,200	—	60	50
3	Blade Shooter	City Level 10	5,200	20	960	100
4	Blade Maelstrom	City Level 20, Blademill built	26,000	50	2,880	800

Spike Factory

Tier	Upgrade	Prerequisites	City Cash cost	Bloonstone cost	Time (minutes)	XP for researching
1	Bigger Stacks	City Level 5	500	—	15	35
2	White Hot Spikes	City Level 8	1,200	—	90	70
3	Spiked Ball Factory	City Level 12	7,500	20	2,160	500
4	Spiked Mines	City Level 20, High Explosives Workshop built	50,000	50	5,760	1,000
1	Faster Production	—	500	—	30	60
2	Even Faster Production	City Level 8	2,000	—	120	100
3	MOAB-SHREDR Spikes	City Level 15, Anti MOAB Research Lab built	20,000	20	2,160	225
4	Spike Storm	City Level 20, Spike Dispersal Unit built	36,000	50	4,320	1,000

Gallery

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