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You were chosen for the Planet Keeper Program. Defend the planet in this retro-inspired incremental game. Upgrade our defenses, destroy our enemies, ensure our future.
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
Try this game before buying.
THE EARTH NEEDS YOUR HELP!
Planet Keeper Program is a program created by the government to prepare humans against different levels of threat. Help us create the best defense!
DESTROY
EVOLVE
or DIE TRYING
With different levels, enemies and dangerous bosses, you need to spend your resources in the best way to improve your powerful laser.
Every attempt counts.
FEATURES:
+80 different upgrades
20 levels
Diverse types of enemies
Unique bosses
Music to vibe with
Addictive, incremental gameplay
Mankind is counting on you.
Right now the cheapest offer for Planet Keeper Program is CA$7.19 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 Planet Keeper Program is CA$5.75 (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 Planet Keeper Program 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.
