
Empyrion – Galactic Survival is a space sandbox survival adventure that combines elements from space simulations, construction games, survival games, and first-person shooters. In the game, players can construct vessels, settlements, and space stations. Fuel tanks are used to provide generators with fuel and produce power for vehicles. Players have access to three different types of fuel tanks, distinguished by their size and color-coded dots. The placement of the fuel tank depends on its type, with large fuel tanks placed in bases and capital vessels, and small fuel tanks placed in ground vehicles and small vessels. To use a fuel tank, players must place it near the appropriate core, fill it with fuel packs, and activate their base or vessel. Biofuel and Prometheum are common fuel sources, with players suggesting strategies to craft sufficient biofuel. Players have also discussed the time-consuming process of manually refuelling large ships with numerous tanks.
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What You'll Learn

Fuel tank placement
Fuel tanks in Empyrion are used to provide generators with fuel and produce power for your vehicles. There are three different types of fuel tanks available: small, large, and ground vehicle/small vessel.
When placing a fuel tank, ensure that you have selected the correct type of tank for your base or vessel. The large version of the fuel tank, used in bases and capital vessels, has red and yellow dots, while the small version, used in ground vehicles and small vessels, has blue and green dots. In the constructor screen, you can select the appropriate category (base, capital vessel, small vessel, or hover vessel) to ensure you are using the correct fuel tank.
The placement of the fuel tank is also important. To use a fuel tank, place it in a location attached to the appropriate core. Once placed, fill it with fuel packs, and the generators will begin using the fuel to produce power. Make sure that the fuel tank is easily accessible for refuelling, as this can be a time-consuming process, especially for large ships.
Additionally, consider the power source you want to use. You can use solar power, fuel generators, or a combination of both. If you build solar power and a fuelled generator, the solar power will be used first, and the generator will only use fuel when the solar capacitor is empty.
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Fuel sources
There are a few different fuel sources available in the game. The early-game fuel source is biofuel, which can be crafted from plant fibre. Players can obtain plant fibre by chopping down trees and processing them in constructors. This process yields 600 plant fibre per game day, which translates to 60 biofuel. While biofuel is easy to obtain early in the game, it may not be sufficient for more advanced vessels or longer journeys.
Another fuel source is Prometheum, which appears to be a more advanced fuel type that players can progress to after biofuel. However, it can be challenging to find and may require significant time investment.
Players can also use fuel packs to power their generators and vessels. These fuel packs are placed into fuel tanks, which are then attached to the appropriate core. The fuel tanks come in different sizes, with small fuel tanks used for ground vehicles and small vessels, and large fuel tanks used for bases and capital vessels. The placement of the fuel tank is important, as it needs to be attached to the correct core to function properly.
Additionally, solar power can be used as an alternative to fuel-based generators. Solar power can be used in conjunction with fuel generators, where the solar power is utilised first, and the fuel is only consumed when the solar capacitor is empty. This provides players with flexibility and the ability to conserve fuel when possible.
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Fuel tank types
Fuel Tanks in Empyrion are used to power generators, which in turn provide power for vehicles. There are three types of fuel tanks available:
Small Fuel Tanks
Small Fuel Tanks are used for small vessels (SV) and hover vessels (HV). They are distinguished by blue and green dots and are placed in the appropriate core of the vessel. These fuel tanks are typically used for ground vehicles and small vessels that require a smaller fuel capacity.
Large Fuel Tanks
Large Fuel Tanks are designed for bases (BA) and capital vessels (CV). They are identified by red and yellow dots. These fuel tanks are larger in size and are used for structures or vessels that require a more substantial amount of fuel.
T1 Fuel Tank
Players can unlock the T1 Fuel Tank at level 3 in the tech tree. This fuel tank can be used as an alternative to solar panels and capacitors for powering generators. It is a good option for those who prefer to use fuel packs as their primary power source.
The type of fuel tank chosen depends on the specific requirements of the vehicle or structure being powered. Small vessels might require less fuel capacity, while larger capital vessels or bases might need the larger fuel tanks to meet their power demands. Additionally, players can use biofuel as an early-game fuel source and later progress to Prometheum for more efficient power generation.
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Fuel tank activation
To activate a fuel tank in Empyrion, you must first ensure that you have placed the fuel tank correctly. The placement of the fuel tank depends on whether you are using a small or large fuel tank. Small fuel tanks are used for Ground Vehicles (GV) and Small Vessels (SV), while large fuel tanks are used for Bases (BA) and Capital Vessels (CV).
Once you have determined the correct fuel tank size, place the fuel tank in a location attached to the appropriate core. For a base, this would typically be near the generator. After placing the fuel tank, fill it with fuel packs. The type of fuel depends on your progress in the game. In the early game, biofuel is the primary source of fuel, which can be crafted from plant fibre or wood. As you progress, you may gain access to Prometheum or Promethium fuel packs.
Once the fuel tanks are filled, you can activate your Base or Vessel by pressing the "Y" key. This will start the process of powering your vehicles or bases using the fuel in the tanks.
It is worth noting that, as of 2016, there was no feature to fill all fuel tanks at once. Players had to manually fill each tank individually, which could be time-consuming for larger ships with hundreds of fuel tanks. However, this issue may have been addressed in subsequent updates to the game.
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Fuel tank refilling
Firstly, it is important to distinguish between the different types of fuel tanks available in Empyrion: Small Fuel Tanks and Large Fuel Tanks. Small Fuel Tanks are used for Ground Vehicles (GV) and Small Vessels (SV), while Large Fuel Tanks are designed for Bases (BA) and Capital Vessels (CV). Each type of fuel tank is colour-coded to help you identify its purpose: red and yellow dots for Large Fuel Tanks, and blue and green dots for Small Fuel Tanks.
To refill your fuel tanks, follow these steps:
- Place the fuel tank in a suitable location attached to the appropriate core, such as a generator for vehicles or bases.
- Fill the fuel tank with fuel packs. Currently, fuel packs are the only available power source for fuel tanks.
- Once the fuel tanks are filled, activate your base or vessel by pressing 'Y'.
It is worth noting that refuelling larger ships with numerous fuel tanks can be time-consuming, as each tank needs to be filled manually. However, efficient fuel management can be achieved by using biofuel in the early game, which can be crafted from plant fibre or wood. This will help you save up enough fuel to power your ships for extended periods.
Additionally, if you are using solar power alongside a fuelled generator, the solar power will be utilised first, and the generator will only consume fuel when the solar capacitor is empty.
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Frequently asked questions
To power a fuel tank, you need to place it in a location attached to the appropriate core. Once placed, fill it with fuel packs and the generators will begin using the fuel to produce power.
You have access to 3 different types of fuel tanks. When building one for a base, set your selection to only base items so you do not get them mixed up. In the constructor screen, on the far upper right-hand side, you can select the type of vessel for which you are building the fuel tank. Each type is colour-coded: red for base, orange for CV, blue for SV, and green for HV.
Biofuel is the early-game source of fuel, followed by Prometheum. You can create biofuel by cutting down trees and getting wood.
You can save up plant fibres to create biofuel. This will allow you to power your ships for days.
No, there is no "Fill All" feature in Empyrion. You have to fill each tank individually.











































