In Empyrion – Galactic Survival, one of the most crucial resources you’ll need early and often is Promethium. This blue-glowing fuel source powers everything from small generators to your capital vessels. Without it, your ships won’t fly, your base will go dark, and your drills and multitools will be useless. Knowing where to find Promethium, how to extract it, and how to use it efficiently can make the difference between thriving and struggling in the game’s vast sandbox universe.
Understanding Promethium in Empyrion
What is Promethium?
Promethium is an energy resource found throughout the galaxy in Empyrion. It appears in both ore and pellet form and is most commonly used to craft fuel packs, power base structures, and operate various energy-consuming devices. You’ll encounter Promethium as early as the starting planet, and it becomes even more important as your technological capabilities expand.
It is essential to learn how to efficiently gather and manage your Promethium supply if you intend to maintain a self-sustaining base or explore other planets and systems. Running out of Promethium mid-flight or during a drone attack can lead to serious setbacks.
Where to Find Promethium
Starter Planet Deposits
When starting a new game, your first planet whether it’s Akua, Omicron, or any other seed will typically contain small Promethium deposits. These are scattered across the surface or located slightly underground and are visible as glowing blue patches or map markers once revealed.
- Use the drone to scout for Promethium by flying overhead and looking for clusters of blue or using the detector tool.
- Deposits are marked on your map once scanned or visually identified. Be sure to place a waypoint to return later.
- Begin mining using a Survival Tool or, preferably, a proper drill if you’ve already crafted one.
These early deposits are usually small but adequate for crafting basic fuel packs and sustaining your initial base power.
Meteorites and Asteroids
Once you’ve advanced far enough to unlock space travel or reach mid-to-late-game stages, Promethium can be acquired from meteorites and space asteroids.
- Meteoritesmay fall after depleting a planet’s Promethium deposits and provide a renewable source of the ore. Watch for alerts and check your map for meteorite impacts.
- Asteroidsin space fields can contain large Promethium veins. Use the detector on your Small Vessel (SV) or Capital Vessel (CV) to scan asteroid belts in orbit.
These methods typically yield larger quantities of Promethium and become the primary source once you’ve expanded your reach off-planet.
POIs and Wrecks
Points of Interest (POIs) such as abandoned structures, wrecked ships, and old bases often contain containers with Promethium fuel packs or ore. These are excellent supplemental sources, especially early in the game.
When looting POIs:
- Use your Multitool to salvage fuel tanks from abandoned bases; many still contain small amounts of fuel.
- Search storage containers, fridges, and constructors for hidden Promethium packs.
- Be cautious many POIs are defended by sentry turrets or hostile NPCs, especially in medium or hard difficulty modes.
Trade and Market Vendors
If you have established reputation or trading access with factions such as the Polaris or the Traders Guild, you can often purchase Promethium ore or fuel packs directly from vending machines or trade terminals.
- Check orbital trade stations or faction-controlled cities on the planet’s surface.
- Look for Auto-Miner cores and refine your Promethium supply with crafting stations at base or CV.
This method is useful when you’re low on fuel and can’t afford to venture into dangerous zones to mine directly.
Best Planets and Moons for Promethium
Planets Rich in Promethium
Some planetary types are known for containing larger Promethium deposits:
- Lava planets– Though dangerous, these often have large surface-level Promethium clusters.
- Icy planets– Glaciers and frozen regions sometimes hold Promethium beneath the surface.
- Moon-type environments– Many moons feature high concentrations of Promethium and are easier to strip-mine.
Exploration with a well-equipped SV or CV will help you locate these high-yield zones quickly. Once a promising location is found, consider establishing an outpost or automated mining station nearby.
Mining and Extraction Tips
Manual Mining
For early game or small-scale needs, manual mining is effective:
- Use the Drill or Epic Drill for efficient extraction.
- Ensure you have enough fuel and ammo if mining in hostile zones.
- Carry portable constructors to process ore into usable fuel packs on the go.
Even small Promethium rocks found on the surface can provide valuable material, so pick them up when exploring.
Automated Mining
In the later game, automatic mining becomes the most efficient method for harvesting Promethium:
- Place Auto-Miners directly on top of depleted or existing Promethium deposits.
- Use Auto-Miner Cores, which are rare but can be found in loot or purchased from vendors.
- Keep Auto-Miners fueled with Promethium packs or fusion cells to keep them running.
This passive approach allows you to gather large quantities of ore while focusing on building, combat, or exploration elsewhere.
Processing Promethium Ore
Turning Ore into Fuel
Once collected, Promethium ore must be refined into usable fuel. You can do this through any standard Constructor (small, large, or advanced).
- Promethium Fuel Packs (small)– Made with raw Promethium ore; used for small generators and drills.
- Promethium Fuel Packs (large)– Provide more energy and are better suited for bases and ships.
As you progress, you’ll also unlock Fusion Cells, which offer more power and efficiency for high-end generators and warp drives, although they require more advanced resources and production chains.
Efficient Usage of Promethium
Managing Consumption
Fuel conservation becomes essential as your base or fleet grows. Here are tips to stretch your Promethium supply:
- Turn off unused systems or structures when not in use.
- Use solar panels to supplement your power needs at planetary bases.
- Upgrade devices to energy-efficient versions when available.
Balancing fuel use with production and exploration ensures you won’t be caught in the dark when you need power the most.
Promethium is one of the most essential and versatile resources in Empyrion – Galactic Survival, critical for powering your tools, ships, and infrastructure. From early game mining on starter planets to automated collection on moons and asteroid belts, knowing where to find Promethium and how to use it wisely will support your success across the galaxy. Whether you’re raiding POIs, buying from traders, or deploying Auto-Miners, a steady supply of Promethium is the fuel that keeps your survival journey alive.