Overview
There are two types of Defensive buildings:
Perimeter Defenses (under the «Defensive» tab on the «Construction» menu) and
Improvements (under the «Improvements» tab on the «Construction» menu).
To purchase Defensive buildings, you need Crystals and Resources.
The Perimeter is the wall surrounding your Sector. It includes Walls, Towers, Gun Turrets and Missile Turrets.
They improve the defensive capability of all Troops within your Sector.
Once you've researched new Technologies, advanced Perimeter Defense will become available.
Improvements are for enhancing the grounds of your Sector and adding to your Perimeter Defense.
Every Improvement item adds a few points to your Sector defense and increases your Troops' morale.
There are two types:
- Items that can be installed only within the grounds of your Sector.
- Items that can be installed both within your Sector and on the Perimeter of your Sector.
Remember: Perimeter buildings can be removed and replaced as you gain access to more advanced defensive walls and buildings.
Wall
Each segment of Wall you build helps to increase your Sector's defense bonus.
It also serves as a platform for installing Barbed wire, Barriers and Spotlights (these also contribute towards raising your Sector's overall defense bonus).
The number of Walls you can build is limited by only your Sector's size.
Walls can only be installed along the grey perimeter line outside of your Sector.
Research Perimeter technologies (Levels 1, 2, 3, 4 and 5) to gain access to more advanced perimeter Walls.
To build a Wall, do the following:
1. Go to your Sector.
2. Click «Construction».
3. Open the «Defensive» tab and choose the Wall.
4. Choose an area along your perimeter and start building.
Tower
Each Tower you build helps increase your Sector's defensive bonus.
More importantly, they serve as the mounting platform for active defensive systems like the Gun Turrets and Missile Turrets. These systems improve your defensive forces ability to repel enemy attacks.
You can build 12 Towers in total, and they can only be installed along the grey perimeter line surrounding your Sector.
Research Perimeter technologies (Levels 1, 2, 3, 4 and 5) to gain access to more advanced perimeter Towers.
To build a Tower, do the following:
1. Go to your Sector.
2. Click «Construction».
3. Open the «Defensive» tab and choose the Tower.
4. Choose an area along your perimeter and start building.
Gate
Each Gate you build helps increase your Sector's defensive bonus.
More importantly, they serve as a larger mounting platform for active defensive systems like the Gun Turrets and Missile Turrets. These systems improve your defensive forces ability to repel enemy attacks.
You can build 4 Gates in total, and they can only be installed along the grey perimeter line surrounding your Sector.
Each Gate has mountings for up to 4 Turrets or Sensors.
Research Perimeter technologies (Levels 1, 2, 3, 4 and 5) to gain access to more advanced perimeter Gates.
To build a Gate do the following:
1. Go to your Sector.
2. Click «Construction».
3. Open the «Defensive» tab and choose the Gate.
4. Choose an area along your perimeter and start building.
Gun Turret
Gun Turrets increase your Sector's defensive bonus.
Gun Turrets can be installed only on Towers and Gates.
Their number is limited by the number of available mounting platforms they can be installed on.
Research Perimeter technologies (Levels 1, 2, 3, 4 and 5) to gain access to more advanced Gun Turrets.
To build a Gun Turret do the following:
1. Go to your Sector.
2. Click «Construction».
3. Open the «Defensive» tab and select the Gun Turret.
4. Choose an area on a mounting platform (Tower or Gate) and start building.
Missile Turret
Missile Turrets increase your Sector's defensive bonus.
Missile Turrets can be installed only on Towers and Gates.
Their number is limited by the number of available mounting platforms they can be installed on.
Research Perimeter technologies (Levels 1, 2, 3, and 4) to gain access to more advanced Missile Turrets.
To build a Missile Turret do the following:
1. Go to your Sector.
2. Click «Construction».
3. Open the «Defensive» tab and select the Missile Turret.
4. Choose an area on a mounting platform (Tower or Gate) and start building.
Sensor
Sensors increase your Sector's Intelligence Defense bonus.
Their primary function is to help increase the ability of your Recon Drones to detect and destroy Enemy Drones trying to Recon your sector.
They can be installed only on Towers and Gates, and their number is limited by the number of available mounting platforms.
Research Perimeter technologies (Levels 1, 2, 3, 4 and 5) to gain access to more advanced Sensors.
To build a Sensor do the following:
1. Go to your Sector.
2. Click «Construction».
3. Open the «Defensive» tab and select the Sensor.
4. Choose an area on a mounting platform (Tower or Gate) and start building.
Perimeter and Sector Improvements
All Improvements help increase your Sector's defense bonus.
The more of these buildings you have in and around your Sector, the higher your Troops' defensive index is.
Detectors, Reflectors, Wires, and Barriers of various types can be installed on both on your perimeter Walls, Gates, Towers - and on the grounds inside your Sector.
To build Detectors, Reflectors, Wires and Barriers:
1. Go to your Sector.
2. Click the "Construction" button.
3. Open the "Improvements" tab, then open the "Miscelaneous" tab and select the object you want.
4. Select an area and start building.
Sector Improvements
All Improvements help increase your Sector's defense bonus.
The more of these buildings you have in and around your Sector, the higher your Troops' defensive index is.
Aside from your Detectors, Reflectors, Wires, and Barriers there are miscellaneous Improvements that can only be installed within the grounds inside your Sector.
These include Roads, Lights, Barrels, and U-Tanks.
Improvements fall under several categories:
- Holiday;
- Military (including Elite Sector Security Units that do not need Credits for maintenance but stay only in the confines of the Sector);
- Flags (they add to your Sector Defense Bonus);
- Miscellaneous (apart from Detectors, Reflectors, Wires, and Barriers, here you can purchase Mutagen Barrels that add mutagen for creating Cyborgs).
EMS-72 Repair Bot
The EMS-72 Repair Bot is an improvement item capable of automatically repairing the Extractor Rig, and all defensive Elite Sector Security improvements in your sector, including the:
-"Hyperion" Helijet;
-"Eris" Field Gun;
-"Cronus" Temporal Tank;
-PD-13 "Cockroach";
-PD-8 "Atlas";
-PD-72 "Juggernaut".
EMS-72 Repair Bots are activated automatically upon signing into the game, do not consume Resources, and cannot be damaged or destroyed.
Each EMS-72 Bot you install increases the rate of repair for all Elite Sector Security units and the Extractor Rig in you Sector by 5%. You may install a maximum of 5 EMS-72s.
To install an EMS-72 Repair Bot:
1. Go to your Sector.
2. Click "Construction".
3. Open the "Improvements" tab and select the EMS-72.
4. Select an area within your Sector and begin construction.