Building upgrades
Once per day, 
Building upgrades can be done on certain 
Construction Sites 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...).
Upgrades
| Building | Base | Level 1 | Level 2 | Level 3 | Level 4 | Level 5 |
|---|---|---|---|---|---|---|
 Great Pit
|
10 
|
30 (+20)
|
55 (+25)
|
85 (+30)
|
120 (+35)
|
160 (+40)
|
 Evolutive Wall
|
55
|
85 (+30)
|
120 (+35)
|
170 (+50)
|
235 (+65)
|
315 (+80)
|
 Portal Lock
|
5
|
20 (+15)
|
50 (+30)
|
80 (+30), No for opening
|
- | - |
 Pump
|
15
|
20
|
20
|
30
|
30
|
40
|
 Water Turrets
|
70
|
126 (+56), -2 /day
|
182 (+56), -4 /day
|
238 (+56), -6 /day
|
322 (+84), -9 /day
|
??? (+???), -??? /day
|
 Vegetable Plot
|
 daily
|
+   daily
|
+  daily
|
+  daily
|
+  daily
|
+  daily
|
| Grenade Launcher
|
40
|
70 (+30), -1 /day
|
115 (+45), -2 /day
|
190 (+75), -3 /day
|
280 (+90), -4 /day
|
380 (+100), -5 /day
|
 Workshop
|
 refinable
|
-6 %
|
-12 %
|
-18 %
|
-25 % , 3 HP/
|
-35 % , 4 HP/
|
 Defensive Adjustment
|
+ 10%
|
+ 11% (+1%)
|
+ 13% (+2%)
|
+ 15% (+2%)
|
- | - |
 Observation platform
|
Vote 
|
 in 3km range visible
|
in 6km range visible
|
in 10km range visible
|
Teleport to  from 1km
|
Teleport to from 2km
|
 Battlements
|
Max. 10 
|
Max. 20
|
Max. 40
|
+1% survival chance for
|
- | - |
| Searchtower
|
Wind visible | Replenish for 37%/zone
|
Replenish for 49%/zone
|
Replenish for 61%/zone
|
Replenish for 73%/zone
|
Replenish for 85%/zone
|
 Public lights
|
No penalty in 2km | No penalty in 6km, -1  /day
|
No penalty on map, -2 /day
|
- | - | - |
 Garbage Dump
|
Items dumpable |  6 (+5),  4 (+3) 
|
 7 (+6),  6 (+2)
|
2 (+1)
|
- | - |
 Defensive Focus
|
1.5× to
|
2.0× to
|
2.5× to
|
3.0× to
|
- | - |
 Soul Purifying Source
|
5 / 
|
10 /
|
less impact
|
20 and 2 ranking points/
|
- | - |
 Builder's Merchant
|
Daily:  ×1
|
Daily:  ×1 ×1
|
Daily: ×1  ×1
|
Daily: ×2
|
Daily: ×1, at times  ×1
|
- |
For more details see the respective building.
Same number of votes
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 pump at 20 votes each, but have pump at level 1/5 while search tower is not upgraded (level 0), then pump 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), pump 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, pump will be upgraded, since it reached 20 votes first.
External links
- Building upgrades - Official MyHordes.eu Help Section