Compare Galactic Missile Defense prices across 50+ stores and find the best deal. Developed by Black Sheep Games. Published by Black Sheep Games. Released on 6/7/2017. Available on PC, Mac, Linux. Genres: Action, Casual, Indie, Strategy.

Sixty hours of grand strategy this is not, but if a quick-hit score-attack loop with actual upgrade decisions sounds like your Tuesday night, this budget indie has more going on under the hood than its price suggests.

My first reaction when booting Galactic Missile Defense was, honestly, mild skepticism. I spend most of my time in games where a single poor resource allocation decision can unravel three hundred years of carefully managed empire, so a game built around three turret bases and incoming Martian waves did not immediately read as something with meaningful depth. I was partially wrong about that, and partially right. The structure is an endless, leaderboard-based wave defense. You command three technologically distinct bases, but only one fires at a time, so cycling between them intelligently is the closest thing the game has to an active rotation mechanic. The weapon roster has genuine variety: standard missiles and lasers serve as your bread-and-butter, while the higher-tier options such as Plasma Missiles, Heat-Seeking Missiles, the Nuclear (Armageddon) strike, and the Black Hole ability introduce area-clearance tools that can swing a wave from disaster to survival. Booster management is where the light strategy layer lives. Knowing when to hold a Black Hole for a dense cluster versus spending it early on a fast-moving formation is a real decision, and the game does escalate enemy density and speed at higher levels in a way that punishes passive play. That said, the ceiling is visible and not especially high. There is no meta-progression to speak of, no branching upgrade tree, no mod support, and the community around it on PC is very small, with a mixed Steam reception across a limited review count. Repetition sets in once you have internalized the weapon rotation. The difficulty spike at later waves is steep rather than graduated, which will feel arbitrary to some and satisfying to others depending on how much you enjoy the score-attack grind. For someone accustomed to systems with dozens of interlocking variables, the lack of long-term strategic scaffolding is a genuine absence. Where it earns a fair shake is in accessibility. The controls are immediate, the weapon descriptions are clear, and someone who has never touched a tower defense game can understand what is happening within two minutes. The keyboard shortcut system for activating upgrades mid-wave adds a small but real execution layer that keeps hands busy. If you have a younger player nearby or want something to run between longer sessions, the low commitment per run is genuinely useful. The humor in the premise, a rover ruins a Martian picnic and Earth pays the price, also keeps the tone light enough that failure never feels punishing in the wrong way. Go in expecting a compact, occasionally tense score-attack loop rather than a tower-defense system to theorycraft. Manage those expectations correctly and the game delivers what it promises at a budget price point. Diego, Scout Team

Galactic Missile Defense
ActionCasualIndieStrategy

Galactic Missile Defense

Jun 7, 2017Black Sheep Games
GamerScout Says

Sixty hours of grand strategy this is not, but if a quick-hit score-attack loop with actual upgrade decisions sounds like your Tuesday night, this budget indie has more going on under the hood than its price suggests.

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Screenshots & Media

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About Galactic Missile Defense

My first reaction when booting Galactic Missile Defense was, honestly, mild skepticism. I spend most of my time in games where a single poor resource allocation decision can unravel three hundred years of carefully managed empire, so a game built around three turret bases and incoming Martian waves did not immediately read as something with meaningful depth. I was partially wrong about that, and partially right. The structure is an endless, leaderboard-based wave defense. You command three technologically distinct bases, but only one fires at a time, so cycling between them intelligently is the closest thing the game has to an active rotation mechanic. The weapon roster has genuine variety: standard missiles and lasers serve as your bread-and-butter, while the higher-tier options such as Plasma Missiles, Heat-Seeking Missiles, the Nuclear (Armageddon) strike, and the Black Hole ability introduce area-clearance tools that can swing a wave from disaster to survival. Booster management is where the light strategy layer lives. Knowing when to hold a Black Hole for a dense cluster versus spending it early on a fast-moving formation is a real decision, and the game does escalate enemy density and speed at higher levels in a way that punishes passive play. That said, the ceiling is visible and not especially high. There is no meta-progression to speak of, no branching upgrade tree, no mod support, and the community around it on PC is very small, with a mixed Steam reception across a limited review count. Repetition sets in once you have internalized the weapon rotation. The difficulty spike at later waves is steep rather than graduated, which will feel arbitrary to some and satisfying to others depending on how much you enjoy the score-attack grind. For someone accustomed to systems with dozens of interlocking variables, the lack of long-term strategic scaffolding is a genuine absence. Where it earns a fair shake is in accessibility. The controls are immediate, the weapon descriptions are clear, and someone who has never touched a tower defense game can understand what is happening within two minutes. The keyboard shortcut system for activating upgrades mid-wave adds a small but real execution layer that keeps hands busy. If you have a younger player nearby or want something to run between longer sessions, the low commitment per run is genuinely useful. The humor in the premise, a rover ruins a Martian picnic and Earth pays the price, also keeps the tone light enough that failure never feels punishing in the wrong way. Go in expecting a compact, occasionally tense score-attack loop rather than a tower-defense system to theorycraft. Manage those expectations correctly and the game delivers what it promises at a budget price point. Diego, Scout Team

Tags

singleplayerachievementstrading-cardscloud-savestier:sub-5Score-AttackEndless Wave DefenseBooster ManagementBase RotationLeaderboard-DrivenBeginner-Friendly

System Requirements

Minimum

OS
Windows 7 or later
Memory
2 GB RAM
Storage
75 MB available space
Graphics
512 MB Graphics Card
Processor
1 GHz Dual Core

Recommended

OS
Windows 8 or later
Memory
4 GB RAM
Storage
2 GB available space
Graphics
1 GB Graphics Card
Processor
2.6 GHz Dual Core

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Game Info

Developer
Black Sheep Games
Publisher
Black Sheep Games
Release Date
Jun 7, 2017

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Price History

2026-06-100.78(lowest)

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Frequently asked questions about Galactic Missile Defense

How much does Galactic Missile Defense cost?

Galactic Missile Defense pricing changes often and varies by store, edition and region. The live price table on this page compares the cheapest in-stock key and store offers across 50+ verified shops, so you always see the current lowest price before you buy.

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What platforms is Galactic Missile Defense available on?

Galactic Missile Defense is available on PC, Mac, Linux.

When was Galactic Missile Defense released?

Galactic Missile Defense was released on 7 June 2017.

Who developed Galactic Missile Defense?

Galactic Missile Defense was developed by Black Sheep Games.