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Games like Mercury Fallen | IndieDex

Mercury Fallen
Games like Mercury Fallen

Find the Steam hidden gems

single-players with secrets you find without a guideor

Games like Mercury Fallen

A lengthy single-player sci-fi colony sim about rebuilding an alien underground base, with simple systems and mixed reviews citing rough edges.

Surviving Ceres
A survival strategy sim on Ceres with crafting, base building, alien defense, and terraforming, offering a satisfying but visually dated ~20-hour colony experience.
2025-05-02
- First person
- Strategy

Indie

Simulator

Role-playing (RPG)

Drill Core cover art

Drill Core

A strategic planet-mining colony sim that mixes base management with tower defense, balancing resource extraction against escalating alien attacks.

2025-07-17

Science fiction
Strategy
Indie
Side view
Sandbox

Farlanders cover art

Farlanders

A retro-styled turn-based Mars city builder about terraforming and alien artifacts, with a short campaign and a poorly explained tutorial.

2023-01-17

Science fiction
Survival
Strategy
Bird view / Isometric
Indie
Simulator
Turn-based strategy (TBS)

GeoDepths cover art

GeoDepths

A slow-burn single-player mining adventure where you drill deeper on a remote planet, upgrading equipment and building a base while uncovering cave mysteries.

2023-10-20

First person
Adventure
Strategy

Alien Horizon (Preview Alpha) cover art

Alien Horizon (Preview Alpha)

A realistic, long-form survival city builder set on an inhospitable alien planet.

2024-01-30

Stranded: Alien Dawn cover art

Stranded: Alien Dawn

A single-player planet survival sim focused on managing a marooned group through base building and strategic decisions, with a median reviewer playtime of about 34 hours.

2023-04-25

Science fiction
Survival
Strategy
Bird view / Isometric
Simulator

Aven Colony cover art

Aven Colony

A single-player sci-fi city builder set on an alien planet, mixing resource management with environmental challenges, offering roughly 24 hours of content—though some players face stability issues.

2017-07-25

Science fiction
Survival
Strategy
Bird view / Isometric
Indie
Simulator
Sandbox

Exogate Initiative cover art

Exogate Initiative

A sci-fi management simulation about building an underground base, recruiting specialists, and exploring alien worlds via a gate, with moderate pacing but potential technical issues.

2025-01-28

Science fiction
Strategy
Bird view / Isometric
Simulator

Scorchlands cover art

Scorchlands

A cozy but sometimes unintuitive strategic colony builder about resource management and logistics on a volcanic moon, with a relaxed pace and roughly 16 hours of play.

2024-07-25

Science fiction
Puzzle
Strategy
Fantasy
Bird view / Isometric
Indie
Simulator
Open world
Sandbox

Space Haven cover art

Space Haven

A deep single-player spaceship colony sim with tile-by-tile construction, gas and crew management, and space exploration, typically lasting 20–50 hours.

2026-05-13

Science fiction
Strategy
Fantasy
Bird view / Isometric
Indie
Simulator
Role-playing (RPG)

MegaFactory Titan cover art

MegaFactory Titan

A harsh-climate factory-building sim with faction trade/war, mixed reviews, and a very long automation campaign.

2026-06-02

Science fiction
Strategy
Indie
Simulator

Rogue AI Simulator cover art

Rogue AI Simulator

A tense facility-management strategy sim where you play a rogue AI managing suspicious human test subjects, with micro-heavy and resource-scarce gameplay.

2023-01-11

Strategy
Bird view / Isometric
Indie
Simulator
Role-playing (RPG)