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You’re not the hero, you’re the invasion. Drop in as skull-helmeted soldiers and obliterate a bug-infested planet. Choose your class, aim & fire non-stop, complete brutal objectives, and swap weapons & abilities on the fly. Unlock new classes and gear as you go. Execute the protocol.
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 Train Fest starts Jul 20, 2026
Official stores with direct support.
You’re not the hero. You’re the invasion.Drop onto a hostile bug-infested planet as skull-helmeted soldiers and execute Invasion Protocol.
Choose from unique classes, the regular Soldier, Officer, War Engineer, Infiltrator, Explosives Expert, or Zoner. Each with completely different abilities and playstyles.
Aim and fire at the same time in fast, brutal top-down combat, no cover, no waiting, just pure trigger discipline
Blast through procedurally linked levels and complete dynamic objectives: defend a base, hunt a brood queen, repair a drop-ship, or exterminate everything
Swap weapons and abilities on the fly from weapon crates and ability stations
Survive escalating swarms, mutations, and massive bosses
Unlock new classes, devastating weapons, and game changing abilities after every run
Fast, chaotic, and ridiculously replayable a roguelite shooter where you are the final boss the planet never wanted. Execute the protocol.
Right now the cheapest offer for Invasion Protocol is CA$11.99 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 Invasion Protocol is CA$7.79 (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 Invasion Protocol 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.
