Red Siren: Space Defense

Red Siren: Space Defense

ISTOM Games · December 4, 2025 · Action, Casual, Robots, Shooter, Action-Adventure

Buy Red Siren: Space Defense from Steam at $14.99 — the cheapest of 1 store we compare.

PC
6 user reviews83% · 6
Best price
$14.99
lowest tracked $3.74
Steam Buy at Steam

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Where to buy Red Siren: Space Defense — official stores

Steam
Steam
Standard Edition · Steam
$14.99
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Red Siren: Space Defense price by region

Red Siren: Space Defense costs £0.44 in the United Kingdom, €0.49 in Europe (EUR), zł2.71 in Poland, $14.99 in the United States, $14.99 in Georgia (USD), CA$19.49 in Canada, A$21.95 in Australia, NZ$21.99 in New Zealand and R$46.99 in Brazil right now.

Cheapest Red Siren: Space Defense offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
United Kingdom £0.44 −97% £12.79 £0.44 2
Europe (EUR) €0.49 −97% €14.79 €0.49 2
Poland zł2.71 −96% zł67.99 zł2.71 2
United Statesyour region $14.99 $14.99 — 1
Georgia (USD) $14.99 $14.99 — 1
Canada CA$19.49 CA$19.49 — 1
Australia A$21.95 A$21.95 — 1
New Zealand NZ$21.99 NZ$21.99 — 1
Brazil R$46.99 R$46.99 — 1

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Screenshots

About Red Siren: Space Defense

Fly the most advanced robot destroyer spaceship of the galaxy, the Red Siren. Defend steel mines on real alien planets, fight hostile alien mechs and robots in an endless war for sky dominance. Join the Force and play your part in real space ship battles.

The year is 2138. Power hungry mining colonies wage warfare to achieve supremacy over the abundant planets of a faraway star cluster. With the support of civil society and modern robotics, the private companies have colonized the surrounding planets, utilizing their natural sources worldwide. Since the new mining technology is not available for everybody, people are organized in groups, building robots and looting planets. War was inevitable. In response, the Exacorp established Red Siren combat squad. As a highly trained pilot, you take control of the most advanced starfighters of the galaxy to safeguard strategically important planets. Annihilate invading ground forces, achieve aerial superiority, and use your resources to upgrade your ship to dominate any combat situation, and become the most feared predator of this interstellar conflict! The outcome of the war is in your hands!

Red Siren: Space Defense is a space war game with futuristic robots, tanks, spaceships, war mechs and huge battle machines! Enjoy the amazing visuals, realistic effects, exciting battles, challenging missions… the real robot warfare! Discover marvelous planets, defend the base building, destroy all enemy robots, tanks and mechs! Hunt down the enemy space ships with your massive weapon arsenal. Unlock new levels in four different worlds, try every ship, weapon and upgrade them to be a real robot destroyer! Try to demolish all of your enemies as fast as you can, throw multiple bombs, blast them with your plasma gun, launch your missiles and keep shooting. The strategy is up to you, but no matter what: crush their forces and stop the invasions all over the world!

🚧 Key features:
☆ Spectacular graphics and audio
☆ Tons of varying enemy types
☆ Intuitive starfighter controls
☆ Stimulating, action packed gameplay
☆ Upgrades and new ship types tailored for different play styles
☆ Full retina display support
☆ Leaderboards & achievements

🎮 Gameplay Content:
☆ fight against multiple enemies: tanks, robots, mechs, ships, battle walkers
☆ ranks and achievements 👑
☆ upgradable weapon arsenal 🔧
☆ exciting powerups to aid you in the battle

❗️ Tips:
☆ Try various weapons and upgrade your favorites to the max level
☆ Complete missions to get prizes
☆ Dodge the enemy projectiles and attack them from the back
☆ Don’t be an easy target: keep moving!

Red Siren: Space Defense — game info

Platforms
Windows
Player modes
Single-player
Controller
Full controller support
PC Game Pass
Not included

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Dec 8, 2025
The game focuses entirely on gameplay and comes without any real baggage in terms of story or justification for blasting through waves of enemies. Your goal is to move through a series of stages and destroy tanks, jets, and other hostile units before they destroy you or your headquarters. The path to the final stage is mostly linear, though there are a few side missions where you must carefully maneuver your ship through minefields, collect supply crates, or protect a supply ship. In total, there are 45 stages. The mechanics are based on the twin stick shooter formula, which means you move with one control stick while firing with the other. You can also play with a keyboard and mouse, which may even be the recommended option due to the increased precision it provides. In addition to your main gun, you have access to special weapons, bombs, and missiles. Unlike the primary weapon, which has unlimited ammunition and no restrictions, these secondary weapons require a cooldown period before they can be used again. Beyond the main objective of destroying all enemies, each mission includes two bonus objectives that are always the same. These include completing the mission within a set …
1 found this helpful
Not recommended Apr 4, 2026
Progression system makes you to grind. Enemies fly out of your screen half of the time wth
Recommended Jan 31, 2026
This game plays nicely, and there are certain aspects of it that I like: visuals, effects, controls (even though it claims to be a game designed for controllers, it can be played via mouse and keyboard well enough). There are some areas the devs should work on: - General monotony of missions and enemies, staleness of tactics (fly fast, hit and run); - Confusing UI (haven't figured how to buy or equip secondary weapons, missiles or bombs); - Chaotic movement of aerial enemies (fly off above the top of the screen).

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