Developer Log #38 :: More Power

Alpha 0.15 was a big update and, now that I’ve fixed its critical issues, I’ve hit the ground running on more content. Various additions, changes and improvements are on the way. Let’s take a look.

Geothermal Generator

Mercury Fallen :: Geothermal Power

Thermal vents have been added to the underground map and can be tapped for power. The new Geothermal Generator can be placed on top of a thermal vent and will generate 2,000W of power without requiring fuel. There are a limited amount of thermal vents, depending on map size.

Thermal vents will be spawned in existing saved games as well.

UI Changes

Mercury Fallen :: Research Meter

A new research progress meter has been added to the HUD next to the power/water meters. Now you’ll see at a glance what is being researched and its progress. This new meter is also a button to open the research tree.


Mercury Fallen :: Tool-tip

Various tool-tips have been updated to provide more information and clarity. The job tool-tip, for example, will show the work speed bonus provided to each job based on the job level.

Vehicle Drop Off Items Action

Mercury Fallen :: Vehicle Drop Off Items

The beetle miner will get a new drop off items action. This allows you to drop off materials, to the adjacent facility, from the miner’s inventory without having to dock the vehicle.

AI Improvements

I’ve taken a deep dive into the AI code to improve various behaviors and optimize how colonists determine actions. Builders will now collect and deliver items to multiple objects before performing construction. This greatly improves construction efficiency as it reduces colonists going back and forth collecting construction materials for each object.



In addition to adding new content, I’m always working to resolve existing issues. Many fixes are already in place for the next update, such as the missing wheat thorn discovery, vehicles still moving despite being out of power, vehicle camera tracking and more.


Thank you all for the awesome feedback and support!

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