
- Simulator
- Strategy
- Indie
Game
Mercury Fallen
A sci-fi colony management sim with a focus on exploration, expansion, and survival. Rebuild your underground facility, manage colonists and robots, and uncover the mysteries of an alien world light-years from Earth. Dig deep, expand across the surface, and shape your new home.
A sci-fi colony management sim with a focus on exploration, expansion, and survival. Rebuild your underground facility, manage colonists and robots, and uncover the mysteries of an alien world light-years from Earth. Dig deep, expand across the surface, and shape your new home.
About Mercury Fallen
- Released
- August 2023
- Developer
- Nitrous Butterfly
- Publisher
- indie.io
- Engine
- Unity
- Platforms
- PC (Microsoft Windows) · Mac
Release, studio and platform data from IGDB. Store links go to the sellers, not to us. We do not sell games and we do not host files.
Browse everything
Sorted, filterable and paged. Every link goes to the author’s own download.
From the developers
Official announcements, newest first. Posted on Steam.
- Community AnnouncementsMercury Fallen: 60% Off in the Steam Summer Sale!Mercury Fallen is 60% off in the Steam Summer Sale, June 25 to July 9. Grab your copy and check out other great indie games on sale during the Summer Sale to add to your collection.
- Community AnnouncementsPACK :: Post Apocalyptic Cleaning Kit SaleHowdy Folks!I hope you’re all doing great.I wanted to take a quick second to send a huge thank you your way. The support and feedback you’ve given Mercury Fallen has been incredible—honestly, as a solo dev, seeing people actually enjoy the world I’ve built is what keeps me going!Speaking of that world... I have some exciting news! My other project, PACK :: Post Apocalyptic Cleaning Kit, is offi...
- Community AnnouncementsHappy Holidays!Howdy Folks!Happy Holidays and a Merry Christmas to you all! It has been an incredible year, and I want to extend a warm welcome to everyone who joined the Mercury Fallen community recently. Running this project as a solo developer is a deeply personal journey for me; it’s a passion project I pour my heart into, and nothing is more rewarding than seeing players enjoy the experience.PACK :: Post...
- Community AnnouncementsPACK DevelopmentHowdy Folks!As you may, or may not know, I'm currently developing PACK :: Post Apocalyptic Cleaning Kit. I’ve had a few people ask me why I’m working on such a different kind of game so I thought I would provide an answer for anyone curious.I began development of Mercury Fallen in late 2016 and it was released into early access in late 2017. In late 2023, after many many updates, the game was r...
- Community AnnouncementsUpdate 1.19 Rollback- Rolled back from recent hot fix to address issue with crashing
- Community AnnouncementsMercury Fallen Hot FixHowdy Folks!As you may, or may not, know, Mercury Fallen is made using the Unity game engine and sadly a security vulnerability was recently reported. Thankfully there is no indication that any player data or information has been compromised. Even better is that Unity has patched the engine to fix this issue. Mercury Fallen has been updated using the patched version of the engine and this hot f...
- Mods indexed
- 26
- Versions
- 0
- Newest tracked
- none yet
- Most disruptive update
- No breakage data for this game
Most downloaded
Measured from the source's own counts, summed across every release.
- Unpleasant's Extended Storage ModAll storage containers have been extended to accommodate more items. You will need to dismantle and replace any existing storage containers. Changes this mod makes; Double Storage = From 4,000 to 10,000 items Single Storage = From 1,000 to 5,000 items Crop Bin = From 600 to 2500 items Refrigerato...1.1k downloads
- AutobotsAutonomous worker bots that can perform all human jobs.811 downloads
- Unpleasant's Deep Mining ModThe Deep Driller bot is now capable of mining ore, water and thermal vent floor tiles. (Tested and Working on v31.2)807 downloads
- Unpleasant's Water Pump ModExtracts moister from dirt and pumps it through water conduits. Must be built on dirt. (Tested and Working on v33.6)634 downloads
- Double Population Mod V.23.3This mod is an update of the previous double population Mod. This Mod doubles the population of each difficulty level.577 downloads
- Robot Battery BoosterBattery booster for robots there are 3 tiers improved, advanced, and elite549 downloads
- Unpleasant's Enhanced Generator Mod V2After enhancing our generator technology, we can now generate a substantial amount of power using our existing anthracite fuel supplies. Must be placed on a utility floor. (Working on V33.6)450 downloads
- (Obsolete) Awesome Elevator StorageThis mod makes the elevator more useful. Once the Elevator is powered, you can use the elevator for mass storage. -Elevator now uses 30 power to function -When powered, it will have 5000 storage and 2 equipment slots424 downloads
- Elevator Storage V.23.3This mod makes the elevator more useful. Once the Elevator is powered, you can use the elevator for mass storage. -Elevator now uses 30 power to function -When powered, it will have 5000 storage and 2 equipment slots -Updated for Version 23.3351 downloads
- Bio-Generator Mod [updated: Open Market]Burns plants. Adds also potato battery Hemp generator - very similar to solid one - burns dry hemp only, lower power output.w Efficient solid generator - late game, generate good amount of power from burning solids, no need for water. Potato battery - entry level, but require potatoes to build. A...324 downloads
- (Obsolete) Double Population Spawn v 0.01This mod double the number of starting colonist to 6 and doubles the starting robots to now 2. This mod may conflict with other mods that change starting population.304 downloads
- Super Colonists (Outdated)All Colonists min and max smarts, muscles and athletics are 10.300 downloads
- Русская локализацияКонструктивная критика приветствуется. Негодование по поводу очепяток вдвойне. Файл перевода на Диске -296 downloads
- Autobots - OUTDATED***OUTDATED*** Please unsub and subscribe to the new Autobot version: Autonomous worker bots that can perform all human jobs.231 downloads
- Русский языкПосле загрузки мода, в настройках, в разделе "Игра" нужно выбрать Русский.185 downloads
- Mercury DeutschDeutsche Übersetzung Ich arbeite an der deutschen Übersetzung des Spiels, es gab schon mal eine Übersetzung, doch die wurde aus dem Workshop entfernt, also mache ich eine neue Version. Habe nun alles übersetzt und auch Neues aus der 1.0 Version einge140 downloads
- One SurvivorYou wake up alone, the others are missing. Can you survive long enough to find them?... Start with one human and one robot. -Start with one human and one robot -Slight increase to humans and robots that can be found through out the map104 downloads
- No Power punching BagRemoved all power consumption from the Punching bag. It's not electronic.93 downloads
- Soul SurvivorStart with 1 colonist and 1 worker bot in-search of others. Or start with 1 colonist and no bots in search for more bots. Or be the only survivor with no hope of finding anyone or any bots. Good thing you can make your own bots and clone more humans.88 downloads
- Memories of Home12 posters provided by Infinity Corp. to remind the colonists of what they left behind.75 downloads
- Alien LandscapesFour "alien landscape" posters.58 downloads
- Known BloodfishRemoved requirement for Bloodfish to be discovered because it is acquired in Traps. Still need eggs and aquaponics research to farm.57 downloads
- Example ModThis mod contains a couple of example game tweaks intended for learning how to create a mod. Mod Xml data files are commented with explanations.34 downloads
- Mercury Fallen EspAion (Español)Mercury Fallen traducido al español por cortesía EspAion.31 downloads
Browse all 26 Mercury Fallen mods Sortable by downloads, rating and date.
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Why Mercury Fallen mods break
A mod is compiled against one version of a game. When the game updates, anything that reached into the parts that moved stops working, and it usually stops working silently rather than with a message that explains itself.
That is what the table above counts. It is not a guess: each row is a mod the community has reported as broken by that specific release. The number is a fair measure of how disruptive an update was, and it is the reason people delay updating a game they have modded heavily.
Common questions
Does IndexGG host Mercury Fallen mods?
No, and it never will. Every download link points at the author's own page on Nexus, GitHub, CurseForge or wherever they published it. We index the ecosystem; the files stay with the people who made them.
Where does the compatibility data come from?
From the communities that maintain it in the open, not from guesswork. Each claim carries how it is known, so a reported breakage is never presented as though the author said it.
Why is a mod listed as broken when it works for me?
Compatibility depends on your exact game version and the rest of your load order. A mod marked as broken in one release may work fine on an older one, which is exactly why the version is recorded next to the claim rather than a bare yes or no.






