Sentinel 3: Homeworld
The biggest installment of the award winning Sentinel sci-fi tower defense series now on PC!Take the fight to the alien homeworld and unleash a massive arsenal of weaponry. Get up close and personal on the battlefield in your power armor to execute devastating attacks and support your defenses! * An epic campaign across 20 levels.
Offers
What are keyshops?Official stores
Official stores with direct support.
Keyshops
Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →
About Sentinel 3: Homeworld
Take the fight to the alien homeworld and unleash a massive arsenal of weaponry. Get up close and personal on the battlefield in your power armor to execute devastating attacks and support your defenses!
* An epic campaign across 20 levels.
* A powerful commander unit which can level up and gain new abilities as you play.
* Over 20 unlockable turrets, orbital ship weapons, automated drones and abilities at your disposal.
* Customize your weapon loadout in the Armory to match the demands of the mission.
* NEW: Includes new content featuring new commander, enemies, campaign, weapons and more!
* Endless modes for all maps.
* NEW: Steam Achievements
* Classic mode allows you to compete for scores in a pure skill-based game mode.
* Exclusive music by Specimen A.
Game details
Game details
Age ratings
Game modes
Languages
Features
Sentinel 3: Homeworld price history
Lowest tracked price: €0.81 (Jul 7, 2026) · current best: €0.81 across 8 stores.
Sentinel 3: Homeworld player count & reviews
80% positive reviews all-time · 4 peak players in the last 30 days.
Sentinel 3: Homeworld — frequently asked questions
Where can I buy Sentinel 3: Homeworld at the cheapest price?
Right now the cheapest offer for Sentinel 3: Homeworld is €0.81 at Gamivo. KingsPrice compares 8 offers from 8 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Sentinel 3: Homeworld has ever been?
The lowest price KingsPrice has tracked for Sentinel 3: Homeworld is €0.81 (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.
How many people play Sentinel 3: Homeworld?
Sentinel 3: Homeworld peaked at 4 concurrent players on Steam in the last 30 days (highest on Jul 9, 2026). The player chart on this page updates daily.
Is it safe to buy a Sentinel 3: Homeworld Steam key from a keyshop?
Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →
How can I get Sentinel 3: Homeworld at a discount?
Create a free price alert on this page and KingsPrice will email you when Sentinel 3: Homeworld 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.
System requirements
Minimum
- OS *: Windows Windows Vista or Windows 7
- Processor: 1.2GHz+ Processor
- Memory: 1 GB RAM
- Graphics: OpenGL 1.3 gfx card/driver with 128+MB Video Ram
- Storage: 300 MB available space
