alliance Building Comparison
Alliance Forge vs Defense Citadel
Comparing the Alliance Forge and Defense Citadel, both alliance 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 | Alliance Forge | Defense Citadel |
|---|---|---|
| Max level | 8 | 5 |
| Base cost | 25,000 metal, 18,000 crystal, 8,000 gas | 80,000 metal, 60,000 crystal, 25,000 gas |
| Upkeep | 250 energy, 120 metal, 80 crystal | 500 energy, 300 metal, 200 crystal, 20 antimatter |
| alliance craft slots / level | +1★ | — |
| craft quality bonus / level | +0.05★ | — |
| sector defense bonus / level | — | +0.2★ |
| alliance member defense aura / level | — | +0.1★ |
★ marks the higher per-level output. Compare against your base's current bottleneck before committing a plot.
Alliance Forge
A shared crafting station owned and operated by the alliance. All members can contribute materials and queue crafting orders for advanced equipment unavailable through individual production chains.
Requires building: alliance station
Defense Citadel
A sector-wide fortification that projects defensive fields and command authority across an entire star system cluster. The most powerful defensive structure in the game — requires alliance-level coordination to build and maintain.
Requires tech: sector fortification
Requires building: alliance station
Which Should You Build First?
Both are alliance 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.