Stardeus Matter Reactor fuel changed in version 0.15.16 on 11 November 2026. Biofuel now generates 2.5 times as much power as before, several metals got major boosts, and a handful of once-useful raw materials are weaker.
If your power setup relied on an older fuel ranking, it is worth checking again. There is no official table of exact new power values for every item, so the useful answer is which materials improved, which declined and what to consider before burning your supplies.
Stardeus Matter Reactor Fuel Changes in Update 0.15.16
The developers changed how much power a Matter Reactor gets from different fuel groups. These are changes compared with the previous version, not a definitive ranking from best to worst.
| Material or group | Change |
|---|---|
| Biofuel | 2.5 times more power than before |
| Petroleum, Coal | More power, exact amount not stated |
| Platinum, Gold, Uranium, Silver, and their ingots | Much more power |
| Refined plates, ingots, wires and glass | A little more power than the source materials |
| Ice, Water, Rock, Titanium, Lithium, Silicon | Much less power |
Only Biofuel has a new numerical multiplier in the 11 November patch notes. The words “more” and “much less” are the developer’s descriptions, not measurements we can turn into invented percentages.
Is Biofuel the Best Stardeus Matter Reactor Fuel?
Biofuel is the clearest winner in terms of a confirmed improvement. Its power output is now 2.5 times its previous value. That does not mean it makes 2.5 times the power of Coal, Petroleum or any metal. Those would be different comparisons.
For Stardeus Matter Reactor fuel decisions, think about both output and supply. A slightly weaker resource you have in abundance might be more convenient than one needed for construction. The official notes do not establish a universal cheapest or most profitable material to consume.
Petroleum, Coal and Heavy Metals After the Rebalance
Petroleum and Coal both gained power output, although Kodo Linija did not list exact figures. Platinum, Gold, Uranium and Silver, including their ingots, gained much more power. That makes older advice about never using these materials in the reactor less reliable.
There is a practical catch. Precious metals and refined ingots have other uses, so burning them can cost you resources you need for another project. Before feeding one to a reactor, look at your inventory and the production work waiting elsewhere on the ship.
Which Matter Reactor Fuels Got Weaker?
The weaker Stardeus Matter Reactor fuel group is Ice, Water, Rock, Titanium, Lithium and Silicon. According to the changelog, each now produces much less power in a Matter Reactor than it did before this update.
Do not confuse that with those materials being useless. They can still matter elsewhere in your colony. It simply means they are less attractive as things to burn for electricity, especially if an older setup depended heavily on one of them.
Is Refining Fuel Worth the Effort?
Refined materials, including plates, ingots, wires and glass, provide a little more power than the raw ingredients they were made from. This is another confirmed change to Stardeus Matter Reactor fuel in v0.15.16.
What the patch does not tell us is whether processing resources just to burn them is efficient overall. Refining has its own costs and demands on your workers and power grid. It is sensible to use surplus refined supplies, but do not assume an extra processing step pays for itself.
How to Check Your Reactor’s Fuel Setup
The Matter Reactor can consume various materials to make electricity, and the game has a fuel configuration for choosing what to burn. Examine the reactor’s current setup, the material you have available and whether it belongs to a buffed or reduced group.
When evaluating Stardeus Matter Reactor fuel, use your present version’s results rather than old lists. If power is suddenly tight after updating, check the type of fuel you have selected before assuming you need a larger reactor network.
Power generation also depends on a usable electrical grid. An unconnected part of the ship will not benefit from changing fuel somewhere else. Inspect the basics before spending resources on more generators.
What the 0.15.16 Notes Do Not Confirm
There is no published per-kilogram output table, no complete energy-per-item ranking, and no measured percentage for the other improved or weakened categories. You should be wary of any guide presenting those as newly confirmed figures.
The takeaway for Stardeus Matter Reactor fuel is straightforward: Biofuel gained a verified 2.5-times boost; Petroleum, Coal and heavy metals improved; several common raw materials weakened; and refined items got a smaller advantage. What is worth burning on your particular ship still depends on what you can spare.
Official source: Kodo Linija, Stardeus changelog.
