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.
User reviews: Mostly Positive (53 reviews)
Release Date: Nov 26, 2010
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Recent updates View all (5)

June 4

Vote for Sentinel 4: Dark Star on Steam Greenlight!



Sentinel 4: Dark Star is now up for consideration on Steam Greenlight, and we need your support! Hit the link and give us a thumbs up if you'd like to see the biggest and best Sentinel game on your PC:

Sentinel 4: Dark Star on Steam Greenlight

Sentinel 4: Dark Star is built on our brand new game engine, which is much more tailored to a PC release than our older Sentinel 3 technology. We've already got the core of the game running smoothly on Windows (check out our Greenlight video and images!) so while there's still work to be done, it shouldn't take too long to bring the game to full release.

We can't do it without you, though! Please take a look, vote us up if you like what you see, and spread the word to let Valve know that you want this game.

Thanks in advance for your support, and we'll keep you up to date on the campaign's progress!

Team Origin8

0 comments Read more

June 4

Sentinel 3: Homeworld update 1.3.0.0 now live!

Today we've got an update with a couple of general enhancements:

  • Added VSync which will cap the framerate to the refresh rate, thus reducing CPU load on fast machines as well as improving visual quality.
  • Added Steam achievement progress tracking for "Kill X enemies" achievements.
  • All audio is now suspended/resumed as the game window is minimised or goes out of focus.
As always, let us know in the comments or forums if you run into any problems, and enjoy!

1 comments Read more

About This Game

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.
* 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.

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
    • Hard Drive: 300 MB available space
Helpful customer reviews
3 of 4 people (75%) found this review helpful
11.7 hrs on record
Posted: February 9
Sentinel 3 is a tower defense game with addition of commander who has several abilities that can change the outcome of the game . There is a bit of RPG elements us you can choose the stats for your commander like strength,life,accuracy and morale .

Game has 4 diffeculties each granting higher EXP and credits. So it rewards you for playing higher diffeculty which is awesome . Some stages require you to defend several routes at the same time so it can be challanging .

You can use credits to unlock slots for new turrets and buy weapons for the robot .

Game has several gameplay modes like campaign,endless and classic .

Good buy for couple $
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8 of 14 people (57%) found this review helpful
1 person found this review funny
251.4 hrs on record
Posted: February 15
Tower Defense games are fun to me. I own a bunch, however, this one was a drag. The playtime required to get a 100% achievements was too much, plus there was no count-down after the 100K aliens killed mark. If the developers would listen to the fans in the forums and react to the input, I will change my recommendation, but for now... there's a lot of better games to choose from.
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88 of 106 people (83%) found this review helpful
1 person found this review funny
2.3 hrs on record
Posted: February 7, 2014
First things first:

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THIS IS A HORRIBLE PORT!
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I am sorry, but it is. This is exactly the mobile game, ported to PC without changing anything. It has no resolution options (and only a low/high quality setting, nothing else). It only runs in window mode or in a stretched (!) fullscreen mode. Really, really bad. I have a native resolution of 1920*1200, so why the hell can't I get this exact resolution in the game? Instead I get this ugly, stretched mess. But ok, I can live with it. Tower defense games were never about the graphics, right? The interface is exaxtly what I know from the iphone. They really didn't change a thing. For instance, if you drag a weapon to a free slot in the armory, it becomes zoomed in in your hand/mouse cursor, which makes sense on a mobile device. It looks horrible and ridiculous on a full HD display though. And they added absolutely nothing. No achievments, no trading cards, no nothing. I really have to assume, that the developers only wanted to make a quick buck with this.

Which is really a shame, because the game itself is actually great. It is exactly what i expect from a tower defense game. Looking at all the newer TD games which try to implement more interaction (like running around with a hero), this is rather old-school. And it is exactly how i like my TD games. Searech for optimal spots for your towers. Find the right balance between getting lots of interest each round and not dying. Love it! And the commander is a nice addition to the already great gameplay of its predecessors. It gives you a little bit of additional interaction, but not too much. For me personally the commander is about as much interaction (besides placing and upgrading towers) as I can take. Perfect!

I really like this game, and that's why it gets a thumbs up. I was really struggling though, because this port is basically a punch in the face of all Sentinel fans. I would have expected more. I pay more money for this than on the iphone after all, so I think i can expect more, right? Whatever, the game is still a lot of fun. If you like traditional tower defense games, this might be the game for you.
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62 of 74 people (84%) found this review helpful
16.2 hrs on record
Posted: February 8, 2014
This was a solid tower defense game on android. The Steam version suffers from being a lazy port. The controls haven't been properly reworked for PC, the slider where you select your mission is slightly bugged (clearly intended to be swiped with a finger and just badly ported over for mouse), and the graphics are poorly detailed when viewed on a normal sized computer monitor or TV.

I think if these guys had just put in a bit more effort, it could have been a good port. As it is for now, there are better tower defense games to be played instead.
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61 of 88 people (69%) found this review helpful
1.5 hrs on record
Posted: February 3, 2014
Solid, Simple, Tower Defense for fans of the genre. This is primarily a fixed path, but flexible tower placement game. Not a maze builder.

After about 30 minutes of play, it appears to just be a bug free, direct port, of the mobile version. That is not necessarily a bad thing. I already own the android version and have beaten it before. Too many mobile to PC ports are buggy right off the start. So far this works fine for me in either full screen or windowed mode. Thumbs up to a smooth mobile to PC transition for the Devs.

It’s a good addition for fans of the genre, especially if you don’t already have it on your tablet or phone. This is best for those that prefer a more 2D tower defense where you focus on upgrades and tower placement like Onslaught, Fieldrunners, iBomber Defense, or Defender’s Quest.

If you prefer a more complex fully 3D tower defense that uses more of the PC’s gaming power I’d recommend checking out Prime World: Defenders, Dungeon Defenders, Sanctum (1 or 2), or Defense Grid.

I enjoy both the simple 2D and complex 3D Tower Defense games. So I was more than happy to add Sentinel 3 to my Steam collection.
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