Sentinel 3: Homeworld
Developed by Origin8 · Published by Strategy First
At a glance
Overview
An indie, strategy game by Origin8, published by Strategy First — single-player.
Steam’s own one-line description: “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.” — developer/publisher text via the Steam store page.
Reception & community
Review sentiment, ownership and peak-concurrent estimates via SteamSpy; tags are player-voted on Steam. Estimates change over time.
Features & modes
Derived from the gameplay modes and feature categories Steam lists for Sentinel 3: Homeworld.
| Feature | Supported |
|---|---|
| Single-player | Yes |
| Multiplayer | No |
| Co-op | No |
| Online co-op | No |
| PvP | No |
| Cross-platform multiplayer | No |
| Full controller support | No |
| Partial controller support | No |
| Steam Cloud saves | No |
| Steam Achievements | Yes |
System requirements (PC)
As published on the Steam store page. Requirements can change between updates.
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
Supported languages (1)
Sentinel 3: Homeworld FAQ
Answered from the official Steam listing as of June 2026. Where something hasn't been announced, we say so rather than guess.
What kind of game is Sentinel 3: Homeworld?
Steam classifies Sentinel 3: Homeworld as a Indie, Strategy game, developed by Origin8. 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.
How much does Sentinel 3: Homeworld cost?
As of June 2026, Steam lists Sentinel 3: Homeworld at $5.99. Prices and regional pricing change — check the Steam page for the current figure.
Is Sentinel 3: Homeworld single-player or multiplayer?
Steam lists these modes for Sentinel 3: Homeworld: Single-player. It lists a single-player mode.
Is Sentinel 3: Homeworld on PlayStation, Xbox, or Switch?
Our data comes from the Steam (PC) store, which lists Sentinel 3: Homeworld for Windows. Console availability isn’t in our Steam-sourced data — check the official site or the console store.
Is Sentinel 3: Homeworld out yet?
Yes — Steam lists a release date of Feb 3, 2014.
What platforms is Sentinel 3: Homeworld on?
Sentinel 3: Homeworld is listed for Windows on the Steam (PC) store. Console availability isn't covered by Steam's PC store data — check the official channels.
Is Sentinel 3: Homeworld single-player or multiplayer?
Steam lists these modes: Single-player.
How much does Sentinel 3: Homeworld cost?
Steam lists it at $5.99.
Does Sentinel 3: Homeworld have achievements?
Yes — Steam lists 47 achievements for Sentinel 3: Homeworld.
Who made Sentinel 3: Homeworld?
Sentinel 3: Homeworld is developed by Origin8 and published by Strategy First.
Where to get Sentinel 3: Homeworld
We don't sell games or track prices — this links to the official Steam store page.
View on Steam →Listing details from Valve's public Steam store data · official site. Not affiliated with Valve/Steam, Strategy First.