Level 1
Level 2
Level 3
Level 4
Level 5
Level 6
This is the most important building in your base. Upgrading your Central Computer allows for expansion and upgrading of most other buildings. It is also a requirement for many Immortal Missions that this building be at a certain level or above.
At every upgrade the image of the Central Computer changes, with the previous level's building becoming part of the larger building at the new level. Certain buildings are only available after a certain Central Computer level has been built. The Central Computer level also limits the level and number of most buildings.
Apart from the large amount of Water, Iron and time required to upgrade this building, there is usually a requirement for a certain number of Water and Iron Storage Buildings at a specific level.
Critically, a higher level Central Computer allows more space for Robots to be built and deployed for defense and during combat.
Building upgrade costs[]
| Level | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|
| Health | 4,250 | 34,500 | 96,000 | 285,000 | 456,575 | 535,800 | 675,000 |
| Power | 26 | 52 | 74 | 96 | 130 | 150 | 5400 |
| Storage buildings ^ | - | - | 2 x L4 | 2 x L6 | 3 x L7 | 3 x L10 | 4xL10 |
| Build water | - | 19,100 | 320,000 | 1,350,000 | 8,125,000 | 17,385,000 | 24,350,000 |
| Build iron | - | 19,100 | 320,000 | 1,350,000 | 8,125,000 | 17,385,000 | 24,350,000 |
| Build time | - | 4m55s | 4h2m30s | 1d11m | 3d2h45m | 30d | 90d |
^ The requirements for Storage Buildings are for each type, Water and Iron, so "2 x L6" means 2 level 6 Water Storage Buildings AND 2 level 6 Iron Storage Buildings are required.
Building upgrade benefits[]
This shows the maximum quantity and level of each building type that is available for a given Central Computer level, as well as the unit spaces and XP gained.
| Level | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|
| Max unit space | 575 | 690 | 1075 | 1,820 | 2,780 | 3100 | 3420 |
| Max attack space | 287 | 345 | 537 | 910 | 1,390 | 1,550 | 1,710 |
| Water/Iron Harvester | 1 x L2 | 2 x L4 | 3xL6 | 4 x L8 | 5 x L10 | 6xL10 | 7xL10 |
| Water/Iron Storage | 1 x L2 | 2 x L4 | 3xL6 | 3 x L8 | 3 x L10 | 6xL10 | 7xL10 |
| Energy Plant | 2 x L2 | 2 x L4 | 2xL6 | 3 x L8 | 3 x L9 | 4xL10 | 4xL10 |
| Light Rail Gun | 1 x L2 | 2 x L4 | 3 x L6 | 4 x L8 | 5 x L10 | 6xL10 | 7xL10 |
| Defensive Cannon | 1 x L2 | 2 x L4 | 3 x L6 | 4 x L8 | 5 x L10 | 6xL10 | 7xL10 |
| LRAT Cannon | - | - | - | - | 1 x L2 | 1 x L4 | 2 x L10 |
| Barrier | 45 x L1 | 55 x L2 | 65 x L4 | 85 x L5 | 105 x L6 | 120xL? |
135xL10 |
| Rover Factory | L2 | L4 | L6 | L8 | L10 | L10 | L10 |
| Transport Factory | - | L2 | L9 | L10 | L10 | L10 | |
| Gunship Factory | - | - | L10 | L10 | L10 | L10 | L10 |
| Robotics Lab | L? | L4 | L6 | L8 | L10 | L10 | L10 |
| Research Center | - | L2 | L4 | L5 | L10 | L10 | L10 |
| Transmitter | - | - | L2 | L3 | L6 | L8 | L8 |
| Warehouse | L? | L4 | L9 | L9 | L9 | ||
| XP Gained | - | 27,000 | 162,500 | 367,000 | 40000 |