Base Defences

Base defense is the top most priority in Battle Pirates, without defenses plundering and storing loot becomes pointless as other players will just walk in and take it away from you.  Below goes over the basics of Base Defense, to view Base Defense Designs refer to this page http://battlepiratesuguide.blogspot.com/p/base-designs.html

Defense structures are the following:

• Defense platforms
• Walls

Each one of this types have 4 levels, requiring a specific armor upgrade in order to be built.
Increasing the level of a platform or a wall increases it's armor, i.e. the health pool (consequentially taking more and more time for the repairs). There is no requirement of a defense platform level in order to set a specific weapon on it. So, for example, there may be situations with a level 1 defense platform, hosting a IV level Victory Mortar on it. 

Each tower can have one weapon, equipped on it. The base weapons are researched in the Weapon Lab (by a matter of fact, there is a special tab for them). 

Walls are either Wall Corners, or normal walls. The main objective of them is to prevent damage from ballistic weapons (Ripper and ...). Wall construction and upgrade does not require a builder, i.e. one can build a defense platform (or any other building) and simultaneously build and/or upgrade walls. A wall takes 3 seconds to build, several walls can be built the same time, just like the terrain. Walls are zynthium heavy, so be sure to have it stockpiled before starting some wall building/wall upgrading campaigns. 

The best ways of building the aforesaid defense structures is to combine both of them in such a way, that will cause the attacking fleet to waste more time overwhelming them. A common policy here is to cover the defense platforms with walls (one terrain tile can host a tower in the middle and one wall layer circling the tower). A double wall can also be useful, though it will require more planning and placement actions, because one terrain tile won't be enough for it.

Walls

Level	Armor points	Oil	Metal	Energy	Zynthium	requires
1	250	179	529	471	929	Nothing
2	750	714	2,114	1,886	9,286	Steel II
3	2,250	2,857	8,457	7,543	92,857	Titanium III
4	6,750	11,429	33,829	30,171	185,784	Depleted Uranium IV

Defense Platform

The defensive weapons for a base are mounted on defense platforms. The higher the level of the platform, the higher the armor and the longer it will survive an attack. You can only build Defense Platforms level I. If you want higher level Defense Platforms, you will need to do it by upgrading a lower level one.

Defense Platform Stats

Defense Platform	Level I	Level II	Level III	Level IV
	Defense Platform Lvl1	Defense Platform Lvl2	Defense Platform Lvl3	Defense Platform Lvl4
Armor	400	1,200	3,600	10,800
Build / Upgrade
Requirements	None	Outpost 2 Steel II	Titanium III	Outpost 4 Dep. UraniumIV (Naval Lab 10)
Build Time		15m 40s	4h 26m 20s	1d 7h 4m 20s
Build Oil	1250	31,250	218,750	1,531,250
Build Metal	3700	92,500	647,500	4,532,500
Build Energy	3300	82,500	577,500	4,042,500
Build Zylithium	6500	162,500	1,137,500	7,962,500

Base Weapons

These are the weapons you can place on your defense platforms to defend your base against attacks by other players.

Howitzer Cannon

Howitzer Cannon

Mid-range, large caliber, anti ship ballistic cannon. Howitzer's are ballistic base anti-ship weapons that fire at a fast rate. Their are four levels of howitzer's, each level has higher damage, range and firing speed than the previous. Layered Armor protects attacking fleets against howitzers. These are hard hitting but short range weapons and when not protected by other longer range weapons can easily be destroyed by attackers from a safe distance. Peacemaker mortars, siege mortars (draconian tech), assault mortars (draconian tech) and shock wave mortars (draconian tech) can avoid this weapon when attacking bases.

Howitzer Cannon Stats

Howitzer Cannon	Level I	Level II	Level III	Level IV
Range	60	66	72	78
Damage	42	92	204	448
Accuracy	90%	80%	70%	66%
Reload Time	2.0s	1.5s	1.0s	0.75s
D * A / RT	18.9	49.1	142.8	394.2
Type	Ballistic
Research
Research Time	-	1h 31m	13h 46m	5d 3h 55m
Requirements		Weapon Lab 2	Weapon Lab 4 Howitzer II	Weapon Lab 6 Howitzer III
Research Oil	-	132,192	1,189,728	10,707,552
Research Metal	-	275,400	2,478,600	22,307,400
Research Energy	-	308,448	2,776,032	24,984,288
Research Zynthium	-	330,480	2,974,320	26,768,880
Build
Build Time	20s	9m 0s	1h 14m	12h 23m
Build Oil	2,448	44,064	396,576	3,569,184
Build Metal	5,100	91,800	826,200	7,435,800
Build Energy	5,712	102,816	925,344	8,328,096
Build Zynthium	6,120	110,160	991,440	8,922,690

​

Sentinel Missiles

Sentinel Missiles

Long-range, heat seeking missiles. Most bases still have Sentinel missiles as base weapons. this can be 'cured' with the reactive armor special

Sentinel Missile Stats

Sentinel Missile	Level I	Level II	Level III	Level IV
Range	20-86	20-90	20-96	20-102
Damage	96	206	426	854
Accuracy	100%	100%	100%	100%
Reload Time	5.0s	5.0s	5.0s	5.0s
Salvo	2	2	2	2
D * A / RT	19.2	41.2	85.2	171
Type	Penetrating
Research
Research Requirements	Weapons Lab 2 Rapier Missiles I	Weapons Lab 4	Weapons Lab 6	Weapons Lab 8
Research Time	20m	3h 07m	1d 4h 7h	10d 13h 7m
Research Oil	27,500	225,000	2,025,000	18,225,000
Research Metal	27,500	247,500	2,227,500	20,047,500
Research Energy	27,500	247,500	2,227,500	20,047,500
Research Zynthium	31,250	281,250	2,531,250	22,781,250
Build
Build Time	40s	18m	2h 48m	1d 1h 18m
Build Oil	2,448	75,000	675,000	6,075,000
Build Metal	5,100	41,250	371,250	3,341,250
Build Energy	5,712	41,250	371,250	3,341,250
Build Zynthium	6,120	46,875	421,875	3,796,875

​

Flak Gun

Flak Gun

Anti-missile defense cannon used to shoot down missile barrages fired by enemy ships. The Flak Gun shoots yellow defensive lasers at enemy missiles. It targets Rapiers, Cutlasses, Hydra Rockets, and Maelstroms.

Flak Gun Stats

Flak Gun	Level I	Level II	Level III	Level IV
Range	76	76	76	76
Damage	0	0	0	0
Salvo	4	4	4	4
Reload Time	4	3	2.5	2
Spread	35	35	35	35
Type	Defensive	Defensive	Defensive	Defensive
Research
Research Time	15m		19h 14m	7d 5h 8m
Research Requirements	Weapon Lab 3 Rapier Missiles I Diplomat Mortar I	Weapon Lab 6	Weapon Lab 8	Weapon Lab 10
Research Oil	22,800		1,846,800	16,621,200
Research Metal	20,900		1,692,900	15,236,100
Research Energy	20,900		1,692,900	15,236,100
Research Zynthium	23,750		1,923,750	17,313,750
Build
Build Time	36s	12m	2h 8m
Build Oil	7,600	68,400	615,600
Build Metal	6,967	62,700	564,300
Build Energy	6,967	62,700	564,300
Build Zynthium	7,917	71,250	641,250

​

Bombard Rockets

Bombard Rockets

Anti-mortar defense cannon used to shoot down mortar shells from enemy ships. Firing bombard rockets that target enemy mortar (explosive) projectiles ejected from the launcher based on a defense platform. Each higher level of defense weapon fires more salvo's with greater accuracy. It aims for peacemaker and diplomat shells. 

Bombard Rockets Stats

Bombard Rockets	Level I	Level II	Level III	Level IV
Range	35	35	35	35
Damage	0	0	0	0
Accuracy	50	60	70	75
Reload Time	2	2	2	2
Salvo	4	8	12	16
Type	Defensive	Defensive	Defensive	Defensive
Research
Research Time		2h 22m	19h 14 m	7d 5h 08m
Research Requirements	Weapon Lab	Weapon Lab	Weapon Lab 8	Weapon Lab 10 Bombard Rockets III
Research Oil		205,200	1,846,800	16,621,200
Research Metal		188,100	1,692,900	15,236,100
Research Energy		188,100	1,692,900	16,236,100
Research Zynthium		213,750	1,923,750	17,313,750
Build
Build Time	36s	12m	1h55m
Build Oil	7,600	68,400	615,600
Build Metal	6,967	62,700	564,300
Build Energy	6,967	62,700	564,300
Build Zynthium	7,917	71,250	641,250

​

Victory Mortar

Victory Mortar

Powerful long-ranged mortar. Excellent for destroying large armadas. Victory mortars are explosive mortar shells good for near the heart of your base, where it has more cover-able range on water. The largest draw back is the mortar's inability to hit moving targets. 

Victory Mortar Stats

Victory Mortar	Level I	Level II	Level III	Level IV
Range	55-110	57-114	59-118	61-122
Damage	250	600	1,500	3,000
Splash	15	15	15	15
Spread	90	90	90	90
Reload Time	10	10	10	10
Salvo	1	2	3	4
D / RT	25	60	150	300
Type	Explosive	Explosive	Explosive	Explosive
Research
Research Time
Research Requirements	Rapier Missiles I Diplomat Mortar I Peacemaker Mortar I	Weapon Lab 5 Vic Mortar I	Weapon Lab 7 Vic Mortar II	Weapons Lab 9 Vic Mortar III
Research Oil	25,000		2,025,000	18,225,000
Research Metal	27,500		2,227,500	20,047,500
Research Energy	27,500		2,227,500	20,047,500
Research Zynthium	31,250		2,531,250	22,781,250
Build
Build Time	36s	16m	2h 31m	22h 46m
Build Oil	8,333	75,000	675,000	6,075,000
Build Metal	4,583	41,250	371,250	3,341,250
Build Energy	4,583	41,250	371,250	3,341,250
Build Zynthium	5,208	46,875	421,875	3,796,875

D * A / RT = Damage per second