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Manage a group of colonists as they attempt to survive underground on an alien world. Automated machine construction was sent ahead to create the Mercury facility, but something has gone wrong and your colonists awake to find the facility in ruin. Build structures, research new technologies and send out expeditions to the surface to ensure the survival of your new found home away from home.

Mercury Fallen is heavily inspired by games such as Banished, Dungeon Keeper II and RimWorld. While there is no plan for combat, there will certainly be challenges your colonists will face.

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Developer Log #57


Howdy Folks!

Hope everyone is healthy and staying safe. Since the release of the Farming & Harming update I’ve been working hard on the next batch of content. The next update will primarily focus on changes to surface content. The first batch of changes will be coming to the Experimental branch on Steam soon.


The word on the street is that expeditions in Mercury Fallen require too much micro management and become a bit of a chore. To resolve this, points of interest will be chosen during expedition creation. The expedition team will automatically travel to each POI and back to the facility to dock. A notification will appear each time the expedition team has arrived at a POI with an expedition report.

I’m also experimenting with changing the food requirement to use separate expedition supply items that provide travel rations. The amount of travel rations required would depend on the total travel distance and the amount of passengers.

Points Of Interest

Points Of Interest are getting updated to provide more up front information regarding what is required and a risk assessment. This will allow for better choices when settings up an expedition.

POI generation will no longer use the Comm Station and radar towers, but instead become visible as you uncover the surface.

Surface Resources

Harvest-able surface resources will no longer be infinite or mine-able on any tile. Surface resources can be scanned for and, once detected, will appear in explored areas.

Experimental Branch

I’m working to bring the first batch of changes to the Experimental Branch on Steam soon. For those interested, this will be a great way to help test and provide feedback on the many additions and changes.

Thanks for all the great feedback and stay safe!

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Dev Log #56 :: Farming & Harming Update

Dev Log #56 :: Farming & Harming Update


Covering some of the content coming in the Farming & Harming update

New Beginnings Update

New Beginnings Update


Update 23 brings many new changes and additions, such as an updated power system, new world generation, starting conditions and even brand new colonist...

Dev Log #53 :: Colonist Improvements

Dev Log #53 :: Colonist Improvements


A peek at some of the things coming in the next content update.

Dev Log #52 :: Roadmap

Dev Log #52 :: Roadmap


Overview of what's in store in coming content updates including changes to world gen, game balance, farming and construction.


how do the computers work? I tried everything :(

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danto Creator

The computer station needs a colonist set to the scientist profession and an active data recovery project. The computer station will also need power conduits to connect it to power. Hope that helps and thanks for checking out the game.

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Is it ha clone chamber available for use i have the demo I think.

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danto Creator

The clone chamber is available for use in the latest update which was released on itch.io yesterday. Thanks for playing!

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Latest tweets from @tpelham42

RT @mercuryfall: Some fun testing/progress on high stress reactions. #indiedev #gamedev #indiegamedev #indiegame #pcgame #gamingT.co

Jan 22 2021

RT @mercuryfall: Mercury Fallen Developer Log #62 #indiedev #indiegame #gamedev #pcgame #gaming Mercuryfallen.com

Jan 11 2021

RT @mercuryfall: Progress on re-working colonist quirks. Quirks will now be visible in colonist management #indiedev #indiegameT.co

Jan 6 2021

RT @mercuryfall: Mercury Fallen Patch Update 27.2 #indiegame #pcgame #indiedev #gaming Mercuryfallen.com

Jan 5 2021

RT @mercuryfall: Sneak peek of a new object coming in the next update. #indiedev #gamedev #indiegame #pcgame #screenshotsaturday T.co

Dec 31 2020

RT @mercuryfall: Patch Update 27.1 Now Live! #pcgame #indiegame #indiedev #gamedev #gaming Mercuryfallen.com

Dec 29 2020

RT @mercuryfall: Spatial Awareness Update Now Live on #steam! #indiegame #pcgame #gaming #gamingnews Mercuryfallen.com

Dec 10 2020

RT @mercuryfall: Mercury Fallen Spatial Awareness Update Now On Test Build Branch #indiegame #pcgame #steamgame #gaming T.co

Dec 2 2020

RT @mercuryfall: Happy Thanksgiving to any and all applicable :) #turkeyday #Thanksgiving2020

Nov 26 2020

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