production Building Comparison
Crystal Mine vs Module Factory
Comparing the Crystal Mine and Module Factory, both production buildings in Starforge MMO. Base plots and energy upkeep are scarce, so use this to decide which structure earns its slot first.
Build & Output Comparison
| Attribute | Crystal Mine | Module Factory |
|---|---|---|
| Max level | 20 | 10 |
| Base cost | 150 metal, 200 crystal | 1,500 metal, 1,000 crystal |
| Upkeep | 12 energy | 30 energy, 15 metal |
| crystal production / level | +30★ | — |
| module craft slots / level | — | +1★ |
★ marks the higher per-level output. Compare against your base's current bottleneck before committing a plot.
Crystal Mine
Harvests crystal lattices from geological formations.
Module Factory
Crafts weapon and defense modules. Required for advanced modules.
Requires tech: shipbuilding 2
Requires building: shipyard
Which Should You Build First?
Both are production buildings, so the choice depends on your current bottleneck. Prioritise the structure whose highlighted per-level output addresses your scarcest resource, and weigh that against its energy upkeep — a high output that drains your power grid can stall the rest of your base.