Mercury Fallen
Isometric sci-fi colony sim about rebuilding a ruined planetary outpost
Nitrous Butterfly · Published by indie.io · Released Aug 22, 2023
- Reviews
- Mostly Positive
- 77% of 321
- Recent reviews
- Not enough recent
- Playing now
- 0
- right now
- Steam Deck
- Playable
- Last update
- 10 months ago
- Oct 30, 2025
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.
Screenshots and trailer
Mercury Fallen system requirements
As published by the developer.
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
PC version details
DRM, required accounts, controller support and Steam features.
- DRM
- None declared on Steam
- Controller
- Keyboard and mouse
- Platforms
- Windows, macOS
- Achievements
- 18
- Steam features
- Workshop, Cloud saves, Family Sharing, Trading cards
Steam Deck: Playable
- 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
Tags
- 3D
- Sci-fi
- Management
- Survival
- Isometric
- Colony Sim
- Base Building
- Building
- Exploration
- Casual
- Singleplayer
- Simulation
- Procedural Generation
- Underground
- Futuristic
- Mining
Recent updates
- Oct 30, 2025 · Update 1.19 Rollback
- Oct 6, 2025 · Mercury Fallen Hot Fix
- Jun 5, 2024 · Patch Update 1.19
- May 18, 2024 · Rollback To Update 1.17
- May 14, 2024 · Patch Update 1.19 On Experimental Branch
Games like Mercury Fallen
