PCGame

Mercury Fallen

Isometric sci-fi colony sim about rebuilding a ruined planetary outpost

Nitrous Butterfly · Published by indie.io · Released Aug 22, 2023

IndieSimulationStrategy

Reviews
Mostly Positive
77% of 321
Recent reviews
Not enough recent
Players
1
daily peak, Nov 7, 2026
Steam Deck
Playable
Last update on Steam
4 days ago
Nov 2, 2026
Minimum PC
DirectX 11 GPU
4 GB RAM · 0.5 GB disk
Full requirements

What is Mercury Fallen?

In this single-player colony sim, colonists wake in a ruined underground facility on an alien planet. You scavenge materials, build rooms and utilities, manage colonists' needs, research technology, and send expeditions across the surface.

For you if...

  • +you like self-paced base building and colony management
  • +you enjoy researching upgrades and exploring alien terrain

Not for you if...

  • −you want fast action instead of self-paced management
  • −you dislike balancing colonists' needs against available resources

What players say

77% of 321 reviews are positive

Players who recommend it describe laid-back colony building and lasting play value. The most common complaint is unclear instructions; players also report interface problems, bugs, and crashes during longer sessions.

How many players finish Mercury Fallen?

3.2% of Steam players have unlocked «Planetary Repairs», the achievement for finishing the main story.

Share of everyone who owns the game on Steam, including those who barely played it. Updated weekly.

Screenshots and trailer

Mercury Fallen screenshot 1

Mercury Fallen system requirements

Minimum: DirectX 11 GPU, 4 GB RAM, 0.5 GB of disk space.

As published by the developer.

Can my PC run Mercury Fallen?

Tell us your graphics card once and every game page will answer this for you.

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Minimum

OS
Windows 10+
Processor
2.4 GHz Dual Core
Graphics
DirectX 11 compatible card (shader model 3)
Memory
4 GB RAM
Storage
500 MB available space
DirectX
Version 11

Recommended

Requires a 64-bit processor and operating system

Does Mercury Fallen have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Does Mercury Fallen run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

  • Sometimes shows mouse, keyboard or non-Deck controller icons
  • Some text entry requires manually opening the on-screen keyboard
  • Some in-game text is small and may be hard to read
  • All functionality is accessible with the default controller configuration
  • Default graphics settings perform well on Steam Deck

PC version details

DRM
None declared on Steam
Controller
Keyboard and mouse
Platforms
Windows, macOS
Achievements
18
Steam features
Workshop, Cloud saves, Family Sharing, Trading cards
Languages
Text only: English.

Does Mercury Fallen use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 25, 2026. How to filter AI games on Steam

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