Geothermal Generator

The Geothermal Generator is a power-generating building whose output depends on how much lava it covers in the 8×5 area beneath it, with one platform tile separating the generator from that space. The more of those tiles that are lava, the more electricity it produces, making it a specialized late-game power source that relies on environmental setup rather than a fixed output.

If all 40 tiles in the area are lava, the Geothermal Generator can produce 18px80Wh per hour, which is stated to be 10 times the output of Wind Turbine. Because its generation is tied directly to lava coverage, its performance scales with how completely the space below it can be filled with lava tiles. In practical use, this means placement and terrain preparation are the main concerns: the building is strongest when installed above a fully lava-filled chamber, and weaker when only part of the region contains lava.

• Output is determined by the proportion of lava tiles in the 8×5 area below the building.
• A single platform tile must separate the generator from that area.
• Maximum output is reached only when all 40 tiles are lava.
• At full coverage, its power output is significantly higher than Wind Turbine.

Because its efficiency depends on lava placement, the Geothermal Generator is best treated as an infrastructure project rather than a simple one-tile power source. Setting it up well can turn a lava-rich area into a very strong and reliable power supply.