Nanite Factory

The Nanite Factory deploys self-replicating nanobots that dramatically accelerate all construction. Each level doubles the build-speed bonus. It is the most powerful infrastructure building in the game and the goal of every serious main planet.
Base Stats
| Property | Value |
|---|---|
| Base cost | 1,000,000 Metal · 500,000 Crystal · 100,000 Deuterium |
| Cost factor | 2× per level |
| Prerequisites | Robotics Factory level 10 · Computer Technology level 10 |
Cost Formula
Cost Table
| Level | Metal | Crystal | Deuterium |
|---|---|---|---|
| 1 | 1,000,000 | 500,000 | 100,000 |
| 2 | 2,000,000 | 1,000,000 | 200,000 |
| 3 | 4,000,000 | 2,000,000 | 400,000 |
| 4 | 8,000,000 | 4,000,000 | 800,000 |
| 5 | 16,000,000 | 8,000,000 | 1,600,000 |
Build Time Reduction
Each Nanite Factory level halves the remaining build time after Robotics Factory is factored in:
| Robot Lv | Nanite Lv | Divisor |
|---|---|---|
| 10 | 0 | ×11 |
| 10 | 1 | ×22 |
| 10 | 2 | ×44 |
| 10 | 3 | ×88 |
| 10 | 4 | ×176 |
| 10 | 5 | ×352 |
Going from Nanite 2 → 3 halves your build time again. The diminishing returns are financial, not mechanical — each level costs twice as much.
Tips
Build your first Nanite Factory on your main planet (highest mine levels). The build-time reduction pays off fastest there.
Most players stop at Nanite 2 or 3. Higher levels cost enormous amounts and the practical difference in build time becomes less noticeable once you're already at seconds-per-building.
Nanite Factory also accelerates Shipyard builds — useful for mass-producing fleets.
You need Computer Technology level 10, which itself requires a Research Lab level 8. Plan your research path accordingly.