Deuterium
In brief: Fleet fuel — consumed on flights.
(data current as of 2026-05-22, game version 2.12.7)
Where it is minedDeuterium Synthesizer
Mining boosters4
Role in the economy
Fleet fuel — consumed on flights. Mined by the Deuterium Synthesizer; mining is higher on cold planets.
Where it occurs: mining — section Buildings; exchange — Trader; purchase — Shop.
Where it is mined
Deuterium Synthesizer (mining is higher on cold planets)
How to grow production
- Deuterium is mined faster on cold planets: the farther the orbit and the lower the temperature, the higher the yield.
- Raise the mine level — each level increases hourly output.
- Keep production at 100% in the planet settings.
- Avoid an energy shortage — when energy runs short, metal, crystal and deuterium output drops.
- Build the Production Fund — it accumulates a share of your output.
- Upgrade your storages — otherwise surplus is lost on overflow.
Deuterium also comes from Expeditions and can be exchanged at the Trader.
What boosts mining
Alliance Skills 2
Research 1
Senators 1
Accelerators 1
Planet Anomalies 3
Other sources 1
- Cold planet orbit
Questions and answers
What is “Deuterium” in Xterium?
Fleet fuel — consumed on flights. Mined by the Deuterium Synthesizer; mining is higher on cold planets.
Where is “Deuterium” mined?
Deuterium Synthesizer (mining is higher on cold planets).
