Each level adds a construction slot.
Add parallel construction capacity when one active build is the bottleneck. Extra slots do not provide the resources or workers needed to sustain several projects at once.
To establish this building, you need 🏛️ Main Building level 1; 🛠️ Constructor Nexus level 3.
For later upgrades, the Main Building must also reach the target level. The level table shows the resource and time investment before bonuses.
The building definition has no direct structural or active power upkeep. Check the powered extractors, crafting and recruitment that support its use when planning the wider grid.
📸 Screenshot wanted: the Engineering Bay detail panel in a colony (level, upgrade cost and its main controls visible). If the building has a Race name, one shot per Race is ideal.
| Stat | Value |
|---|---|
| Max level | 20 |
| Level 1 cost | 120 Silicates, 90 Metals, 60 Gas |
| Cost growth per level | ×1.28 |
| Base build time | 6 s |
| Build time exponent | 2.2 |
| Max per outpost | Unlimited |
Base numbers, before any research, Race, tile or build-speed bonus.
| Level | Cost to reach | Build time |
|---|---|---|
| 1 | 120 Silicates, 90 Metals, 60 Gas | 45s |
| 2 | 155 Silicates, 115 Metals, 75 Gas | 1m 25s |
| 3 | 195 Silicates, 145 Metals, 100 Gas | 2m 19s |
| 4 | 250 Silicates, 190 Metals, 125 Gas | 3m 27s |
| 5 | 320 Silicates, 240 Metals, 160 Gas | 4m 51s |
| 6 | 410 Silicates, 310 Metals, 205 Gas | 6m 30s |
| 7 | 530 Silicates, 395 Metals, 265 Gas | 8m 25s |
| 8 | 675 Silicates, 505 Metals, 340 Gas | 10m 37s |
| 9 | 865 Silicates, 650 Metals, 430 Gas | 13m 05s |
| 10 | 1105 Silicates, 830 Metals, 555 Gas | 15m 51s |
| 11 | 1415 Silicates, 1065 Metals, 710 Gas | 18m 54s |
| 12 | 1815 Silicates, 1360 Metals, 905 Gas | 22m 15s |
| 13 | 2320 Silicates, 1740 Metals, 1160 Gas | 25m 54s |
| 14 | 2970 Silicates, 2230 Metals, 1485 Gas | 29m 51s |
| 15 | 3805 Silicates, 2850 Metals, 1900 Gas | 34m 06s |
| 16 | 4870 Silicates, 3650 Metals, 2435 Gas | 38m 40s |
| 17 | 6230 Silicates, 4675 Metals, 3115 Gas | 43m 33s |
| 18 | 7975 Silicates, 5980 Metals, 3990 Gas | 48m 46s |
| 19 | 10210 Silicates, 7655 Metals, 5105 Gas | 54m 17s |
| 20 | 13065 Silicates, 9800 Metals, 6535 Gas | 1h 00m |
Key: nano_fabrication