Feed the Fire fuel list: what to burn and how to add it

In Feed the Fire, drag logs, batteries, explosives and fireworks directly into the fire. Burning fuel earns money and grows the flame. Start with the logs that drop onto the field, then add other fuel types as they become available through progression.

Main fuel list and how to add each type

The game's four named fuel families share the same basic drag action:

Golden logs can also appear. When one drops, feed it into the fire just like an ordinary log.

Bring fuel directly into the flame when feeding by hand. Watch for a money number to pop up when it burns; as you keep adding fuel, the FIRE LEVEL counter rises and the fire visibly grows. You can repeat this with the next fuel items that drop onto the field.

More fuels in later worlds

As you progress through later worlds, you can encounter additional fuels, including molten rocks or coal lumps, power cells, fuel cells and gas canisters.

The ice biome also introduces fish as fuel. Penguins can throw fish straight into the fire, providing another way to keep it fed.

Getting more fuel onto the field

Spend money earned from burning fuel in the upgrade tree to open more fuel options. See the fuel unlocks guide for that progression.

Spawners supply fuel for you, with firework spawners as one example. A conveyor belt can carry fuel that lands on it toward the fire. For more on supplying and moving fuel, use the spawners guide.