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.
| App ID | 704510 |
|---|---|
| App type | Game |
| Developer | Nitrous Butterfly |
| Publisher | indie.io |
| Homepage | http://www.mercuryfallen.com |
| Release date | 2023-08-22 16:00 UTC |
| Release state | released |
| Workshop | Visible |
| Store page | store.steampowered.com/app/704510 |
| Last store refresh | 4 hours ago |
| # | Executable | Arguments | OS | Description |
|---|---|---|---|---|
| 0 | MercuryFallen.exe | windows | Mercury Fallen | |
| 1 | MercuryFallen.app | macos | Mercury Fallen |
No player history yet. This app is now tracked, so data will appear within about ten minutes.
| Playing now | Not polled yet (never) |
|---|---|
| 24-hour peak | |
| All-time peak (tracked) |
All Steam store regions, converted to USD at today's exchange rate, compared with the US price. Lowest is the lowest price SteamRaw has recorded for that region.
Loading regional prices…
| Date | Price | Regular | Discount |
|---|---|---|---|
| 2026-09-11 21:22 UTC | $24.99 | $24.99 |
| DLC | AppID | Release | Price |
|---|---|---|---|
| No DLC known for this app. | |||
| Branch | Build ID | Description | Updated | Password |
|---|---|---|---|---|
| public | 14469606 | 2025-10-30 14:24 UTC | ||
| experimental | 24974790 | Experimental | 2026-08-27 16:11 UTC | |
| update_1.17 | 13382679 | Patch Update 1.17 | 2024-05-12 16:21 UTC |
| Depot | Name | OS | Size | Download | Public manifest | Notes |
|---|---|---|---|---|---|---|
| 704513 | windows | 648.76 MB | 209.79 MB | 5178159154911877415 | branches: experimental, update_1.17 | |
| 704514 | macos | 633.18 MB | 203.43 MB | 4950025239010477159 | branches: experimental, update_1.17 |
A build is one published version of the game's files on a branch. Steam assigns a new build ID every time the developer pushes an update, so this list is the update history of the app. The files inside a build (depot manifests) are only readable with an account that owns the game, which SteamRaw does not have yet, so build contents are not shown.
| Build ID | Branch | Updated | First seen |
|---|---|---|---|
| 24974790 | experimental | 2026-08-27 16:11 UTC | 5 hours ago |
| 14469606 | public | 2025-10-30 14:24 UTC | 5 hours ago |
| 13382679 | update_1.17 | 2024-05-12 16:21 UTC | 5 hours ago |
Every appinfo change SteamRaw has observed, grouped by changelist. Tags, features, languages, builds, depots, prices and any other key Steam publishes. Tracking since 2026-09-11 21:22 UTC.
No changes recorded since SteamRaw first saw this app. Every future PICS change will be listed here.
| Changelist | Apps | Packages | Seen | What changed |
|---|---|---|---|---|
| No changelists recorded for this app yet. | ||||
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. https://store.steampowered.com/app/704510/
Howdy 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 officially on sale. While the gameplay is a totally different, it actually takes place in the same universe as Mercury Fallen. If you’ve ever wondered what’s happening elsewhere in that timeline, this is you
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 Apocalyptic Cleaning KitI’ve been working on a new game that recently launched in Early Access. While it’s a departure from Mercury Fallen, it belongs to a genre I’m equally passionate about. It also na
Howdy 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 released out of early access. The development of Mercury Fallen took a long time, but as a solo developer I’m proud of what I created. I learned a lot about game development, but also a lot about project
- Rolled back from recent hot fix to address issue with crashing
Howdy 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 fix addresses this vulnerability.Patch NotesFixed: Rebuilt to resolve security issue with Unity engine.Follow & SupportThank you all for your amazing support! Be sure to wishlist Mercury Fallen and join t
Howdy Folks! As I've mentioned before, I've been developing a new game called P.A.C.K. :: Post Apocalyptic Cleaning Kit. It's currently available to wishlist and I'm super excited to announce that the game has a brand new demo! Wishlist https://store.steampowered.com/app/3286440/PACK__Post_Apocalyptic_Cleaning_Kit/ Demo https://store.steampowered.com/app/3714880/PACK__Post_Apocalyptic_Cleaning_Kit_Demo/ Support If you want to help support development you can become a patron for as little as $1. Exclusive benefits include early access to development builds of the game. Follow P.A.C.K. Discord |
Howdy Folks! I'm super excited to announce that Mercury Fallen is partnering with indie.io! It feels like only yesterday that 1.0 was released and it was a long journey to get there. I'm always amazed, and honored, to see so many of you playing and enjoying my game. With the help of indie.io Mercury Fallen can be brought to even more players. About indie.io For those of you who may not know, working with a game publishing platform like indie.io greatly helps indie developers focus on game development while they handle all the behind-the-scenes magic. From helping manage store pages to crafting
Howdy Folks! I hope everyone is doing well and staying safe out there. I'm super excited to announce that my next project P.A.C.K. :: Post Apocalyptic Cleaning Kit is now available to wishlist on Steam! There is also a brand new shiny trailer to check out as well. Wishlist https://store.steampowered.com/app/3286440/PACK__Post_Apocalyptic_Cleaning_Kit/ Trailer https://www.youtube.com/watch?v=x3cFpJLWC1I Support If you want to help support development you can become a patron for as little as $1. Exclusive benefits include early access to development builds of the game. Follow P.A.C.K. Discord |
Howdy Everyone! It's been an amazing year for Mercury Fallen and I want to thank everyone for the amazing support and feedback. I want to wish everyone an amazing Holiday and hoping you all a wonderful new year! {STEAM_CLAN_IMAGE}/30760687/fc7e7aca2d9b239bdb3853490f90194807dae15a.png Winter Sale Mercury Fallen is now 60% off during the Steam Winter Sale. That's the steepest discount to date. It's a great time to pick up a copy of the game and it makes a great gift for any colony management lover. https://store.steampowered.com/app/704510/Mercury_Fallen/ Support & Follow Mercury Fallen On Twitt
Howdy Folks! A huge thank you to all of you for your amazing support. Mercury Fallen has been a great adventure and, as mentioned before, there isn't any additional content for the game currently planned. So that begs the question: What am I working on then? {STEAM_CLAN_IMAGE}/30760687/f2f19a95f99f06d877e5f77591820786a82712a6.png P.A.C.K. is a first person cleaning game where you play as a robot designed to clean up after natural disasters. The only problem is that it's the end of the world – but that's never stopped a robot from carrying out its objective. Wash, vacuum and clean out old aband
Howdy Folks! A huge thank you for all of the feedback and reports on the experimental branch. Update 1.19 fixes up several issues, including a nasty crash bug that was introduced in 1.18. Additions A couple of minor additions are also included such as a quit to desktop option from the in-game menu and a new slider for for the surface side mining platforms. The new Auto Collect At % slider for mining platforms allows you to set a minimum inventory amount percentage. Resource Transports will now only collect from mining platforms whose inventory amount is at or above this percentage. {STEAM_CLAN
Howdy Folks! Due to additional reports of users experiencing game crashes, I've decided to rollback to version 1.17 while I continue to investigate the issue. If you are experiencing this issue and want to help, please check out the experimental branch. Discord The Mercury Fallen discord is a great place to get the latest information and join the conversation regarding the experimental branch. Discord Thanks everyone for your patience while I work to resolve this issue. Support & Follow Mercury Fallen On Twitter | Facebook | Website | Discord | Merch | Patreon
Howdy Folks! Patch Update 1.19 is now on the experimental branch and aims to resolve game crashes that can occur during auto saves and extended play periods. If you're experiencing poor performance or the game crashing after playing for a couple of hours, please give this experimental branch a try and let me know if it improves your experience. This has been a hard issue to resolve as I've not been able to reproduce the behavior in my testing environments. I am working on further optimizations, but I wanted to get feedback on the optimizations so far. Thanks everyone for the great feedback and
Howdy Folks! Patch Update 1.18 is now available. This update fixes various issues including a game breaking bug where you could deconstruct something critical to progressing in the main mission. Thank you for the great feedback on the experimental branch. There are still some issues that are being looked into, but I wanted to get these fixes out the door. Check out the release notes below for the full list of fixes. Support & Follow Mercury Fallen On Twitter | Facebook | Website | Discord | Merch | Patreon Release Notes Optimized various UI elements to reduce memory usage Reduced memory overhe
Full appinfo as delivered by Steam PICS, changenumber 38383786. Also at /api/app/704510/raw.
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