Fusion
Fusion unlocks the Energy Cell Factory and improves both grid power output and factory charging.
Quick stats
| Effect at level 1 | Bonus |
|---|---|
| All positive energy output | +10% |
| Additional Energy Cell Factory output | +5% |
The global and factory-only bonuses are separate multipliers. At level 1 a factory receives ×1.10 ×1.05 from Fusion before other modifiers. Constructing one also requires Deuterium Synthesizer 5. Fuel Cell Technology enables storage charging. Later levels use tier progression.
Cost and access
Available from level 0 without a lab or research prerequisite. Level 1 costs 19 base RP; later levels grow exponentially before any other-domain tier surcharge. The Research screen shows the current quote and saved funding.
Purchase a completed level immediately with RP, or use automatic investment. Metal, crystal and deuterium are not research payments in 3.0. Physical Research Labs increase RP income, not purchase speed.
Each fifth level adds another initial amount before compounding the bonus itself by 1%. See tier progression.
When to invest
Prioritize Fusion when you need Fuel Cells for scans, gates or mission boosts. Keep enough Deuterium to run the Energy Cell Factory; research does not supply its fuel.