Buy and sell resources for Salt on the open Exchange.
Exchange Salt for quoted raw-resource orders when local production does not match your next purchase. Compare the quote with the urgency of the shortage rather than treating trading as free production.
To establish this building, you need 🏛️ Main Building level 1; 🏪 Trade Hub level 1.
For later upgrades, the Main Building must also reach the target level. The level table shows the resource and time investment before bonuses.
Direct building dependencies: 🌐 Global Commerce Exchange (level 10 required here).
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 Exchange Nexus 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 | 80 Silicates, 60 Metals, 40 Carbon |
| Cost growth per level | ×1.28 |
| Base build time | 5 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 | 80 Silicates, 60 Metals, 40 Carbon | 38s |
| 2 | 100 Silicates, 75 Metals, 50 Carbon | 1m 11s |
| 3 | 130 Silicates, 100 Metals, 65 Carbon | 1m 55s |
| 4 | 170 Silicates, 125 Metals, 85 Carbon | 2m 52s |
| 5 | 215 Silicates, 160 Metals, 105 Carbon | 4m 02s |
| 6 | 275 Silicates, 205 Metals, 135 Carbon | 5m 25s |
| 7 | 350 Silicates, 265 Metals, 175 Carbon | 7m 01s |
| 8 | 450 Silicates, 340 Metals, 225 Carbon | 8m 51s |
| 9 | 575 Silicates, 430 Metals, 290 Carbon | 10m 54s |
| 10 | 740 Silicates, 555 Metals, 370 Carbon | 13m 12s |
| 11 | 945 Silicates, 710 Metals, 470 Carbon | 15m 45s |
| 12 | 1210 Silicates, 905 Metals, 605 Carbon | 18m 32s |
| 13 | 1545 Silicates, 1160 Metals, 775 Carbon | 21m 35s |
| 14 | 1980 Silicates, 1485 Metals, 990 Carbon | 24m 52s |
| 15 | 2535 Silicates, 1900 Metals, 1270 Carbon | 28m 25s |
| 16 | 3245 Silicates, 2435 Metals, 1625 Carbon | 32m 14s |
| 17 | 4155 Silicates, 3115 Metals, 2075 Carbon | 36m 18s |
| 18 | 5315 Silicates, 3990 Metals, 2660 Carbon | 40m 38s |
| 19 | 6805 Silicates, 5105 Metals, 3405 Carbon | 45m 14s |
| 20 | 8710 Silicates, 6535 Metals, 4355 Carbon | 50m 07s |
Key: exchange_nexus