Building upgrades
Once per day, certain 
Construction Sites can be upgraded free of charge (without 
or resources) : this is called the project of the day.
Just before the midnight attack, the upgrade which has received the most votes is accepted and constructed immediately.
Each upgrade can be improved up to 5 times. Each upgrade brings various advantages (improved defences, increased water reserves, reduced construction costs, detection of zombies, special abilities...).
Note: If 2 upgrades have the same amount of votes, there will be a selection process:
- The building that is more upgraded (has a higher level) will be upgraded. For example, if at Day 2 of your town you have search tower and watch tower at 20 votes each, but have watch tower at level 1/5 while search tower is not upgraded (level 0), then watch tower will be upgraded.
- If both of them are at the same level, then the building which reached that tie-vote first will be upgraded. For example, at 10h before the attack (Day 2), watch tower has 20 votes, search tower is not built yet. (Workshop was upgraded on Day 1). Then, at 9h before the attack, search tower is built. By 5h before the attack, search tower has 20 votes. However, by the time the attack comes, watch tower will be upgraded, since it reached 20 votes first.
Defensive Focus
Without 
Defensive Focus defensive items are worth 1.0 points each.
Defensive Focus without upgrades makes defensive items worth 1.1 points each.
- Defensive items are worth 1.2 points each.
- Defensive items are worth 1.4 points each.
- Defensive items are worth 1.6 points each.
- Defensive items are worth 1.8 points each.
- Defensive items are worth 2.0 points each.
Great Pit
Base value: The 
Great Pit gives an additional 10 defence points.
- Increases defence of the Great Pit from 10 to 23. (+13)
- Increases defence of the Great Pit from 23 to 44. (+21)
- Increases defence of the Great Pit from 44 to 76. (+32)
- Increases defence of the Great Pit from 76 to 109. (+33)
- Increases defence of the Great Pit from 109 to 160. (+51)
Pump
Pump. Base value: 5 rations of water are added to the Well (one time only).
- 20 rations of water are added to the well (Once only)
- 20 more rations of water are added to the well (Once only)
- 30 more rations of water are added to the well (Once only)
- 30 more rations of water are added to the well (Once only)
- 40 more rations of water are added to the well (Once only)
Search Tower
The Searchtower originally starts with a 25% chance to undeplete an area.
- 37% chance to undeplete an area.
- 49% chance to undeplete an area.
- 61% chance to undeplete an area.
- 73% chance to undeplete an area.
- 85% chance to undeplete an area.
Evolutive Wall
Base value: The 
Evolutive Wall gives an additional 55 defence points.
- Increases Evolutive Wall defence from 55 to 85. (+30)
- Increases Evolutive Wall defence from 85 to 120. (+35)
- Increases Evolutive Wall defence from 120 to 170. (+50)
- Increases Evolutive Wall defence from 170 to 235. (+65)
- Increases Evolutive Wall defence from 235 to 315. (+80)
Water Turrets
 This page has automatically been added to the to do category for the following reason: Find out new  of each level. The page was tagged by: --Nickyh 07:25, 1 April 2012 (PDT)
|
Water Turrets provide 10 Defence by themselves. Please note that if you do not have enough rations in the well to operate the turrets, the turrets will only provide 10 Defence.
| Level | Water consumed from the well every The Attack
|
Gain | Total |
|---|---|---|---|
| Base | When built. | 0 | 70 |
| 0 | This is the level onto which the turrets fall back if they have been voted,
and there is not enough water in the well for supporting the voted level. |
0 | 10 |
| 1 | 2 | 56 | 126 |
| 2 | 4 | 56 | 182 |
| 3 | 6 | 56 | 238 |
| 4 | 9 | 56 | 294 |
| 5 | 12 | 56 | 350 |
Watchtower
Watchtower. The teleport function will not function with the gates closed. It will however rescue trapped citizens.
- Every morning, all the zombies within 3 km of the town are detected.
- Every morning, all the zombies within 6 km of the town are detected.
- Every morning, all the zombies within 10 km of the town are detected.
- Every morning, all zombies within 10 km of the town are detected + Allows citizens within 1 km of the town to return without using any APs. (From the cyan squares)
- Every morning, all zombies within 10 km of the town are detected + Allows citizens within 2 km of the town to return without using any APs. (From the pale green squares)
| 5 | 5 | 5 | ||
| 5 | 4 | 4 | 4 | 5 |
| 5 | 4 | T | 4 | 5 |
| 5 | 4 | 4 | 4 | 5 |
| 5 | 5 | 5 |
Workshop
- The cost (AP) of all construction projects is reduced by 5%.
- The cost (AP) of all construction projects is reduced by 10%.
- The cost (AP) of all construction projects is reduced by 15%.
- The cost (AP) of all construction projects is reduced by 20%.
- The cost (AP) of all construction projects is reduced by 25%.