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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.
Release Date: Nov 26, 2010
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Sentinel 3: Homeworld v1.2.0.0 - XP and Vista compatibility fix

June 25th, 2014

Hi folks,

Sentinel 3: Homeworld v1.2.0.0 is now live, fixing a compatibility issue with Windows XP and Vista systems. As always, if you have any feedback on this release, head over to the forums and let us know.


Team Origin8

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Campaign 2 and Achievements - Sentinel 3: Homeworld v. now live!

February 14th, 2014

A major Sentinel 3: Homeworld update is now live! Earn sweet, sweet achievements and embark on the massive Campaign 2, for free!

New content:
- Campaign 2, featuring 15 unique new maps in Campaign and Endless mode, new enemies and weapons, and the Aurora Commander mech.
- Steam achievements!
- General Steamworks integration.

- Fix stuck mouse click when moving mouse outside window.
- Fixed push and drag scroll methods fighting.
- Fixed level select jumping to level 1 if mouse is dragged when clicking play.
- Default mode is now windowed, no fullscreen on first launch.


3 comments Read more

About the 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

    • 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
66 of 73 people (90%) found this review helpful
2,079 products in account
8 reviews
2.3 hrs on record
First things first:


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.
Posted: February 7th, 2014
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41 of 49 people (84%) found this review helpful
323 products in account
5 reviews
16.2 hrs on record
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.
Posted: February 8th, 2014
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60 of 84 people (71%) found this review helpful
883 products in account
7 reviews
1.5 hrs on record
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.
Posted: February 3rd, 2014
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3 of 3 people (100%) found this review helpful
384 products in account
16 reviews
8.8 hrs on record
This game BARELY cuts the mark for that yes, and it's for the reason everyone assumes: the port is clearly an afterthought and I was never allowed to forget that while playing. For example, I eventually started pausing mid level every time I wanted to upgrade a tower, because actually selecting one with the mouse is a hit and miss thing - it tries to grab and slide the screen instead, which is utterly useless since the whole map fits fine in my screen. And don't start me on the level selection slider. The appropriate asking price tipped the scale towards yes for me.

That huge aside aside, this is a solid tower defense game of the more traditional variety, with fixed paths and some interesting mechanics - just don't expect a reinvention of the wheel. The maps of the campaigns repeat once too often for my liking, however they're intersting enough and at times challenging. I like the difficulty, though the curve can occasionally be steep and some grinding seems to be encouraged. It is mildly addictive, the graphics are fine and scale alright, the music is okay but can get very repetitive. All in all, as TDs go this one is lukewarm: decent, not great, not bad.

Pet peeve: It's really sparse on information about the levels, the enemies, the towers and the upgrades. I especially miss details on the enemy types (an icon and a level are not info enough in my book). More practical details at the level selection page would also help plan what towers/weapons to pack along. However, since many of the maps are pretty solidly geared towards one or two winning strategies, you could consider that part of the design: this is less a plan ahead and stratgize sort of TD and more a "jump right in and take the hits as they come" one. Personally, I consider the lack of information just another sign of a game made for smaller screens and less reading.

So buy? Yes, I suppose, if you're a TD fan and running dry. Especially if it's discounted and practically free. There are many MANY great TD games for PCs out there and this isn't one of them, but it gave me enough hours of fun to pay for itself.
Posted: May 17th, 2014
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4 of 6 people (67%) found this review helpful
452 products in account
15 reviews
12.3 hrs on record
As tower defense goes this is a great example. I wouldn't say it brings anything truly unique to the table, but gameplay is solid, re-playability good, and progression fun. Advised to any TD fan.
Posted: February 13th, 2014
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