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Our planet's trading port is under attack by an alliance of raiders, defend the station and attack the intruders.
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.
Steam Social Deduction Fest ends
Official stores with direct support.
Get ready for an exhilarating showdown in the depths of space! Space Intruders Alliance is a dynamic top-down shooter where fast-paced action will keep you on the edge of your seat.
Defend the planet's trading outpost against a relentless alien invasion. Face the Space Intruders Alliance in two exciting game modes:
· Turret Mode: Master up to 8 types of specialized turrets, from laser cannons and rocket launchers.
· Ship Mode: Pilot one of 3 advanced ships designed to take on the invading forces, deploying mines or kamikaze drones.
· ⚔️ Devastating Arsenal: Use cannons, rockets, mines, and drones to fight through waves of enemies.
· 🛡️ Intelligent Enemies: The invaders utilize advanced shield technology, testing your skill and reflexes.
· 🚀 Exciting Progression: Unlock more powerful turrets and ships as you overcome waves of enemies.
· 🌌 Immersive Space Setting: Dive into a universe full of action, technology, and intergalactic challenges.
Do you have what it takes to save the planet's trade and repel the space threat?
Right now the cheapest offer for Space intruders alliance is PLN 49.99 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 intruders alliance is PLN 49.99 (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 intruders alliance 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.
