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Games like Alien Marauder | IndieDex

Alien Marauder
Games like Alien Marauder

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single-players with secrets you find without a guideor

Games like Alien Marauder

A short single-player RTS survival game about building and defending a base against alien waves on a hostile planet, with mixed reviews and an abandoned feel.

Colony Siege
A physics-driven RTS/tower-defense hybrid about base building, path mazing, and defending Earth's colonies from alien swarms in solo or co-op.
2020-09-07
- Strategy
- Simulator

Aliens: Dark Descent cover art

Aliens: Dark Descent

A lengthy single-player real-time tactical Alien game where you command a marine squad against Xenomorphs on Planet Lethe.

2023-06-19

Action
Science fiction
Adventure
Strategy
Bird view / Isometric

MarZ: Tactical Base Defense cover art

MarZ: Tactical Base Defense

A single-player Mars-set tower defense strategy game where you build bases, manage crew/resources, and fight undead hordes across a ~19-hour campaign.

2019-04-04

Action
Science fiction
Strategy
Bird view / Isometric
Indie

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

Artificial Extinction cover art

Artificial Extinction

A tense single-player survival-defense game about collecting fuel and holding out with sentry guns against adaptive AI enemies across a story-driven ~4-6 hour campaign.

2020-03-13

Action
First person
Adventure
Strategy
Indie
Role-playing (RPG)

Desperate Place cover art

Desperate Place

A strategic single-player tower defense game about repairing a stranded starship on an alien planet, with an active shooter twist and a ~4-hour campaign.

2025-04-21

Shooter
Science fiction
Strategy
Bird view / Isometric
Indie

Here Comes The Swarm cover art

Here Comes The Swarm

A pauseable single-player survival RTS on planet Ulora, where you build, manage, and defend settlements against an endless Swarm, with accessibility options and a roughly 11-hour median reported playtime.

2026-03-05

Strategy
Bird view / Isometric
Indie
Simulator

Calyx cover art

Calyx

A single-player strategy game of base building and resource gathering against plant-aliens, with a moderate-length campaign and a rough-around-the-edges feel.

2026-01-29

Action
Science fiction
Strategy
Bird view / Isometric
Real Time Strategy (RTS)

SunAge: Battle for Elysium cover art

SunAge: Battle for Elysium

A remastered 2D RTS with base building, alien invasion combat, asymmetric factions, and cross-platform multiplayer, offering a compact campaign in a mostly inactive online community.

2014-12-15

Action
Science fiction
Strategy
Indie
Real Time Strategy (RTS)

Infested Planet cover art

Infested Planet

Command five elite soldiers against a 100,000-strong alien horde in a ~16-hour real-time tactics experience.

2014-03-06

Action
Science fiction
Strategy
Bird view / Isometric
Tactical
Indie
Real Time Strategy (RTS)

Astral Lords cover art

Astral Lords

A sci-fi bullet-hell survival roguelite with RTS base-building, praised for its hand-drawn art and genre fusion, though waves plateau in challenge after a few hours.

2026-06-05

Action
Strategy
Indie
Simulator
Role-playing (RPG)

Artificial Extinction 2 cover art

Artificial Extinction 2

A single-player tower-defense/RTS/FPS hybrid in which you build turrets, mine resources, and fight AI swarms, with reviewer playtime in the sample averaging around 4-7 hours.

2026-06-10

Shooter
Action
First person
Bird view / Isometric
Real Time Strategy (RTS)
Sandbox