Steam App 293200
Sentinel
Sentinel is an interactive audio tower defense game. It mixes strategic gameplay with a dynamic music system.
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Marketplace offers
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KINGUINSentinel 3: Homeworld Steam CD KeyMy Digital GamesUpdated: 2026-09-26 04:57
≈ $ 0.89Region free2 available
View offerKINGUINSentinel 3: Homeworld Steam CD KeyRoyWin4meUpdated: 2026-09-26 04:57
≈ $ 0.90Region free3 available
View offerKINGUINSentinel 3: Homeworld Steam CD KeyHoGamesUpdated: 2026-09-26 04:57
≈ $ 0.98Region free27 available
View offerKINGUINSentinel 4: Dark Star Steam CD KeyFoxKeysGlobalUpdated: 2026-09-26 04:57
≈ $ 1.10Region free10 available
View offerKINGUINSentinel 4: Dark Star Steam CD KeyDigital Distribution HubUpdated: 2026-09-26 04:57
≈ $ 1.11Region free3 available
View offerKINGUINSentinel 3: Homeworld Steam CD KeyDigital Distribution HubUpdated: 2026-09-26 04:57
≈ $ 1.25Region free3 available
View offerKINGUINSentinel 3: Homeworld Steam CD KeyMonKeysUpdated: 2026-09-26 04:57
≈ $ 1.45Region free10 available
View offerKINGUINSentinel 3: Homeworld Steam CD KeyGames MerchantUpdated: 2026-09-26 04:57
≈ $ 5.66Region free3 available
View offerAbout
Sentinel is an interactive audio tower defense game. It mixes strategic game play with a dynamic music system.
The game takes place on a sequencer-like grid. As you add defenses, collect resources and destroy enemies, musical elements are triggered in time to the music.
Fight through 31 levels to clear the virus from the system.
The game takes place on a sequencer-like grid. As you add defenses, collect resources and destroy enemies, musical elements are triggered in time to the music.
Fight through 31 levels to clear the virus from the system.
Regional data
Prices
| Country | Currency | Initial | Final | Discount | Updated |
|---|---|---|---|---|---|
| United States | - | - | Free | 0% | 2026-09-23 14:27 |
| Poland | - | - | Free | 0% | 2026-09-23 14:27 |
| Germany | - | - | Free | 0% | 2026-09-23 14:27 |
| France | - | - | Free | 0% | 2026-09-23 14:27 |
| United Kingdom | - | - | Free | 0% | 2026-09-23 14:27 |
| Czech Republic | - | - | Free | 0% | 2026-09-23 14:27 |
| Slovakia | - | - | Free | 0% | 2026-09-23 14:27 |
| Ukraine | - | - | Free | 0% | 2026-09-23 14:27 |
| Turkey | - | - | Free | 0% | 2026-09-23 14:27 |
| Brazil | - | - | Free | 0% | 2026-09-23 14:27 |
| Argentina | - | - | Free | 0% | 2026-09-23 14:27 |
| Mexico | - | - | Free | 0% | 2026-09-23 14:27 |
| Canada | - | - | Free | 0% | 2026-09-23 14:27 |
| Australia | - | - | Free | 0% | 2026-09-23 14:27 |
| Japan | - | - | Free | 0% | 2026-09-23 14:27 |
| South Korea | - | - | Free | 0% | 2026-09-23 14:27 |
| China | - | - | Free | 0% | 2026-09-23 14:28 |
| India | - | - | Free | 0% | 2026-09-23 14:28 |
Matthew Brown
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Frequently asked questions
How much does Sentinel cost?
Sentinel is currently listed as: Free. Prices may vary by region and store.
Which platforms does Sentinel support?
Sentinel supports: windows, mac, linux.
Who developed and published Sentinel?
Sentinel was developed by Matthew Brown and published by Matthew Brown.
Are external marketplace offers available for Sentinel?
Yes. There are 8 marketplace offers for Sentinel; the lowest cached offer starts from ≈ $ 0.89.