shipbuilding Tech Comparison
Graviton Cargo Expander vs Battleship Doctrine
Comparing the Graviton Cargo Expander (Tier 2) and Battleship Doctrine (Tier 3), both shipbuilding technologies in Starforge MMO. Use this to decide which to queue first when your research lab can only run one project at a time.
Research Comparison
| Attribute | Graviton Cargo Expander | Battleship Doctrine |
|---|---|---|
| Tier | T2 | T3 |
| Research time | 4▼ | 30 |
| metal cost | 3,000▼ | 80,000 |
| crystal cost | 1,800▼ | 40,000 |
| antimatter cost | — | 300▼ |
| Effect | unlock ship: nebula-drifter | enables battleship class: true |
▼ marks the lower resource / time cost. Cheaper isn't always better — weigh it against the effect each tech unlocks.
Graviton Cargo Expander
Unlocks construction of the nebula-drifter (corvette class).
Unlocks ships: nebula drifter
Battleship Doctrine
Heavy-keel construction standards and reinforced spinal mounts unlock the Battleship hull class.
Unlocks buildings: battleship drydock
Unlocks ships: kraken battleship, nova battleship
Requires: shipbuilding 3
Which Should You Research First?
The Graviton Cargo Expander is the lower-tier prerequisite step and typically comes first in the shipbuilding branch, opening the path toward Battleship Doctrine.