Required for Chronos Core construction; it does not add outpost slots.
Prepare the route to a Chronos Core. This is an endgame prerequisite, not an extra source of branch-outpost slots; use the Colonization Hub and Exploration Data for expansion.
To establish this building, you need 🏛️ Main Building level 1; 🏗️ Colonization Hub 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.
Direct building dependencies: ⏳ Chronos Core (level 1 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 Grand 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 | 3 |
| Level 1 cost | 550 Carbon, 800 Silicates, 750 Metals, 250 Gas |
| Cost growth per level | ×1.28 |
| Base build time | 20 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 | 550 Carbon, 800 Silicates, 750 Metals, 250 Gas | 20s |
| 2 | 705 Carbon, 1025 Silicates, 960 Metals, 320 Gas | 24s |
| 3 | 900 Carbon, 1310 Silicates, 1230 Metals, 410 Gas | 30s |
Key: grand_nexus