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Frenetic 2D action in the style of Space Invaders! Customize your spaceship, face hordes of enemies, and challenge yourself in multiple modes, including Campaign, Arcade, Invasion, and Survival. Upgrade your ship, collect power-ups, and face unique challenges in every battle.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
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Get ready for an intense and dynamic 2D shooter inspired by classics like Space Invaders and Galaga! In Space Defense Special Force, control your spaceship through a screen full of enemies, while customizing it with various weapons, attributes, and designs. Move freely in all directions – forward, backward, left, and right – and test your reflexes across different game modes.
In Campaign Mode, upgrade your spaceship after each mission by purchasing improvements that make it stronger and more versatile. In Arcade Mode, choose from power-up cards to enhance your abilities or recover health. Invasion Mode challenges you to collect upgrades and downgrades dropped by defeated enemy ships, but be careful! Picking up a downgrade can weaken your spaceship.
Survival Mode lets you choose upgrades at the start, but once you're done, you can't upgrade anymore – you must fight until the end. In Frenetic Invasion Mode, face endless waves of enemies and more difficult challenges, with even more upgrades and downgrades to collect.
Each mode offers a unique experience, full of action and strategy. Challenge yourself, customize your spaceship, and fight for survival!
Right now the cheapest offer for Space Defense Special Force is CA$1.85 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Space Defense Special Force is CA$1.85 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when Space Defense Special Force drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
