
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.
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About
After a long journey to a distant planet, your colonists were supposed to wake up and begin building their new home. But something went wrong. Their stasis capsules malfunctioned, and when they finally awakened, the underground facility they were meant to inhabit has fallen into ruin.
Now, it's up to you to restore the base, manage resources, and expand across the planet’s surface—all while uncovering the secrets of this alien world and ensuring your colony thrives.
Mercury Fallen is a self-paced sci-fi colony management experience with a focus on exploration, expansion, and story-driven progression. Deconstruct the remnants of an abandoned facility, construct new rooms, conduct research, and grow your colony both underground and across the planet’s surface.

Tear down the ruins, scavenge resources, and transform the underground into a thriving colony. Design essential rooms, power systems, and infrastructure to support your growing population.
Uncover additional colonists, robots, and discoveries hidden in collapsed sections of the Mercury Facility.
Build and manage power and water resources to sustain your growing colony.


Unlock advanced technology, craft vital upgrades, and send colonists on daring expeditions to uncover alien artifacts, lost technology, and the secrets buried beneath the planet’s surface.
Research technology to unlock new rooms, crafting recipes, crops, and facility upgrades.
Discover alien plant life and new resource types to fuel your colony’s expansion.


Expand beyond the underground with surface expeditions and resource extraction.
Construct vehicles to explore alien terrain and extract rare materials.
Expand your power network above ground with multiple energy generation methods.
Send colonists to explore points of interest, uncovering new resources, hidden lore, and lost technology.


Every colonist has a story. Some will thrive, others will struggle—but they all rely on you. Keep them housed, happy, and well-fed while managing their quirks, relationships, and unexpected disasters. As your colony grows, expand your workforce with clones and automated robots to optimize daily operations.

A Colony That Feels Alive: Colonists have unique quirks, moods, and challenges. Keep them happy, or risk disaster as stress builds and problems arise. Manage colonists’ injuries, ailments, jobs, quirks, and needs to ensure long-term survival.
Build & Design Essential Spaces: Construct bedrooms, recreation areas, crafting stations, and more to meet the growing needs of your colony.
Customize your Colonists: Give your settlers unique names, outfits, and equipment, making each colonist truly your own.
Cultivate Alien and Terrestrial Crops: Grow a variety of terrestrial and alien crops to sustain your colony and fuel advanced production chains.
Expand Your Workforce: Grow clones and assemble robots to expand your facility population.
Brace for the Unexpected: React to and prepare for random events, including cave-ins and crop disease.
Procedurally generated worlds ensure a fresh experience each time, while Steam Workshop modding support lets you expand and customize your gameplay. Dynamic events introduce unexpected challenges and opportunities, making each colony feel unique.
Every colony tells a different story. Will yours flourish or fall? With procedurally generated worlds, dynamic challenges, and a blend of underground base-building, planetary exploration, and rich storytelling, Mercury Fallen is an ever-evolving adventure—whether you prefer a laid-back experience or a challenge that keeps you on your toes.
Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English
Engagement
Hours played at review time, across 40 reviews with recorded playtime.
Reviews
Themes across 40 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
positive critical· bar length = how often the theme comes up
Reviews
hidden gem
Poor tutorial, just kind of boring. Not terrible, but nothing that plenty of other games in the genre don't do as well or better. If you absolutely have to get it, wait until it's on sale.
Great unique colony builder with an interesting story. Can feel a bit grindy at times especially on the harder starts but solid core mechanics and an world map exploration/expansion that keeps mid-late game interesting.
Normally i would give a recommend because for a small games its well made. But there is one thing that is really frustrating: In game logic / missing explanations. Normally in such a game new machines, buildings, etc. are either explained how they supposed to work, or its made obvious / logical. Here, unfortunately, it's neither. You build certain things, but it's not explained how they actually work. Sometimes you have to look up the steam discussions to get ahead (as people have asked that before, but the devs didn't fix it/integrate better explanations). Sometimes you can build machines that you cannot use because for that you need to get to the surface and solve something else first (for example for the aquarium, you need 50 bio-research points to unlock a fish to breed. You cannot generate them, so you need to wait for something on the surface to happen (to get the bio-points to unlock the fish), despite the fact that you catch the fish constantly in the water trap and its eggs as well). Why there is such an artificial barrier is beyond me. If it would at least be explained how this is supposed to work, but its not. So as this is not explained at all, you are just dumbstruck and wonder if you have missed something. So progression is all over the place, most things are only vaguely explained or not at all, and often the next step is not obvious/logical, so you have no idea what you need to do to actually get a machine working, which means look up steam discussions. What irks me most here is that these things are really easy to fix, just add explanations to the machines or add more info to the info-overview. It's a small text to add, nothing more, this could be done with a hotfix. Unfortunately this game has very few players and request for support are not really answered mid term. Asked a question a few days ago, no answer. I found out by myself eventually. Until the progression logic is explained better, i cannot recommend this game.
有卡 有成就 没中文 水星陨落 苏醒。重建。探索。 在漫长旅程抵达一颗遥远行星后,你的殖民者本应苏醒,开始建造新家园。可意外发生了。他们的休眠舱出现故障,当众人终于醒来时,那座本该作为据点的地下设施早已沦为废墟。 现在,你必须重建基地、管理资源、向行星地表扩张,同时揭开这颗外星世界的秘密,确保殖民地繁荣存续。 《水星陨落》是一款节奏自由的科幻殖民地管理游戏,主打探索、扩张与剧情驱动的成长流程。拆解废弃设施的残骸,建造新房间,开展研究,在地下与地表同时发展你的殖民地。 拆除废墟,搜刮资源,将地下改造为欣欣向荣的殖民地。设计关键房间、电力系统与基础设施,支撑不断增长的人口。 在水星设施坍塌的区域中,找到更多沉睡的殖民者、机器人与重要发现。 建造并管理电力与水资源,维持殖民地持续运转。 解锁尖端科技,制作关键升级模块,派遣殖民者进行大胆远征,发掘外星文物、失落科技与埋藏在行星地表之下的秘密。 研究科技以解锁新房间、制作配方、作物与设施升级。 发现外星植物与全新资源类型,为殖民地扩张提供动力。 通过地表远征与资源开采,将势力延伸至地下之外。 建造载具探索外星地形,开采稀有物资。 使用多种发电方式,将能源网络拓展至地表。 派遣殖民者探索地标点位,发掘新资源、隐藏剧情与失落科技。 每位殖民者都有自己的故事。有人适应良好,有人步履维艰,但他们全都依赖于你。为他们提供住所、保障心情与食物,同时处理他们的怪癖、人际关系与突发灾难。随着殖民地壮大,你可以通过克隆人与自动化机器人扩充劳动力,优化日常运作。 殖民地核心特色: 鲜活生动的殖民地:殖民者拥有独特怪癖、情绪与困境。让他们保持愉悦,否则压力累积、问题频发将引发危机。管理殖民者的伤病、工作、怪癖与需求,保障长期生存。 建造与规划关键空间:打造卧室、休闲区、制作台等设施,满足殖民地不断增长的需求。 自定义殖民者:为定居者设置专属姓名、服装与装备,让每位角色都独一无二。 种植地球与外星作物:培育各类地球与外星作物,维持殖民地运转,并支撑高阶生产链。 扩充劳动力:培育克隆人、组装机器人,增加设施人口。 应对突发状况:处理并预防塌方、作物病害等随机事件。 程序生成的世界保证每次游玩都有全新体验,游戏同时支持 Steam 创意工坊模组,让你自由扩展与定制玩法。动态事件带来意想不到的挑战与机遇,让每一段殖民历程都独一无二。 每一段殖民故事都截然不同。你的文明会兴盛还是陨落?凭借程序生成世界、动态挑战,结合地下建造、行星探索与丰富剧情,《水星陨落》将带来不断变化的冒险体验 —— 无论你偏爱悠闲节奏,还是紧张刺激的极限挑战,都能找到属于自己的乐趣。
Простенькая стратегия-выживалка. Стартуем в завала под поверхностью планеты, доступны пара деактириворванных сервисных робота и пара криокамер с человечками. Роботов включаем, человечков размораживаем, всем назначаем род занятий (строитель, шахтёр, уборщик, кухня, исследования, ботаника и пр.) и начинаем осваиваться -- разгребаем завалы, демонтируем структуры получая с них базовые ресурсы. Роботов кормим электричеством, человечков -- грибами и дикой картоплей. Через какое-то время, если все не померли, получаем доступ к поверхности и продолжаем изучать её рассылая автоматизированные машины для открытия местности и добычи ресурсов. В итоге, запускаем спутник и выходим на связь... Игра корявенькая, не сразу понятно где брать ресурсы на новые технологии, но разобраться можно, очень залипательно.
Pretty boring honestly. Not clear what should be done, no risk of any sort. Had it literally running in the background for a few hours without any consequences except the colonists grinding skills.
Too much micro.
C'est dommage pour lui, mais j'ai joué à Rimworld et bien d'autres jeux de gestion de colonie avant. Du coup le soucis avec Mercury Fallen, c'est pas que j'ai de soucis avec lui...c'est qu'il me donne envie de relancer Rimworld, ce que je vais donc faire. Si on veut pousser l'analyse plus loin, je dirais qu'il est juste...mal rythmé. La moindre chose prend des plombes à construire (rassembler/crafter les matériaux également). Le pathfinding et l'ordre de priorité est...énigmatique pour le moins (et franchement ? 3 jobs configurables par colon sur la douzaine demandée ?). Et ce qui semble le faire se démarquer, le côté "exploration" est malheureusement trop long à atteindre avec une infrastructure stable. 6/10.
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Trends
Modeled estimate over time, reconstructed from Steam's monthly review histogram.
Momentum
Pace estimated from the game's recent review growth (our daily snapshots) at its own sales-per-review ratio — a momentum signal, not booked sales.
Audience
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.
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