A game filled with heavy combat action, fast-paced tactics and decision making, Space Siege is an all-new science fiction themed action-RPG being developed by Chris Taylor and his talented team at Gas Powered Games, the creators of Dungeon Siege I & II and Supreme Commander.
User reviews:
Mixed (92 reviews) - 50% of the 92 user reviews for this game are positive.
Release Date: Aug 14, 2008

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About This Game

A game filled with heavy combat action, fast-paced tactics and decision making, Space Siege is an all-new science fiction themed action-RPG being developed by Chris Taylor and his talented team at Gas Powered Games, the creators of Dungeon Siege I & II and Supreme Commander.

As humans are fleeing the planet during a massive alien attack on Earth, only one of five evacuation colony ships escapes intact before Earth is completely obliterated by the attacking aliens. In Space Siege, you take on the role of Seth Walker, a combat engineer aboard the Armstrong (the lone surviving ship). Your objective is to protect the human race from being annihilated by this unknown alien species. Ultimately, you must make a horrific choice: will you sacrifice your humanity to save the human race?

At your disposal will be an arsenal of futuristic weaponry and armor, cybernetic upgrades, and a robotic partner that you can customize and command. Space Siege will also feature a single-player campaign that takes place across the vast confines of the Armstrong, a separate mission-based multiplayer campaign, character-building gameplay elements and a storyline that asks: What does it mean to be human?


  • Tactical Combat Action - Outsmart your enemies by setting up ambushes, dodging attacks, ducking behind cover, and using any of the multiple special abilities available to you.
  • Multiple Gameplay Paths - Define your game experience with the decisions you make. Will you remain truly human in the face of insurmountable odds? Or will you enhance your abilities with cybernetic technology to even the score? Customize your character with multiple skills and special abilities that fit your style of play, but realize, all your decisions will have repercussions.
  • Customizable Robotic Partner - Upgrade HR-V, your robot companion, with armor, weapons and special equipment. Command HR-V to perform offensive and defensive tactical combat maneuvers or combine your efforts and unleash special attack combos.
  • Chilling Sci-Fi Story - Follow a multi-chapter storyline and make key decisions that determine the best means to deal with the ferocious alien menace. Interact with dozens of characters with their own histories and personalities - no more "generic NPCs".
  • Online Multiplayer - Up to 4 players can play cooperatively in a separate multiplayer campaign designed specifically for online play. Customize enemy difficulty and toughness to best fit your skill level.
  • Futuristic Combat Technology - Access high-tech weaponry and armor in addition to advanced cybernetic upgrades that will offer powerful abilities with both risks and benefits.

System Requirements


    • Supported OS: Microsoft Windows XP Service Pack 2/Vista
    • Processor: 2.6 GHz processor
    • Memory: 512MB RAM
    • Graphics: 128 MB video RAM or greater, with DirectX 9 Vertex Shader / Pixel Shader 2.0 support (Nvidia 6800/ATI 9800 or better)
    • DirectX Version: DirectX 9
    • Sound: DirectX 9 compliant sound device
    • Hard Drive: 3 GB available hard-drive space


    • Supported OS: Microsoft Windows XP Service Pack 2/Vista
    • Processor: 3.0 GHz Intel or equivalent AMD processor or better
    • Memory: 1 GB RAM or better
    • Graphics: 256 MB video RAM or greater, with DirectX 9 Vertex Shader / Pixel Shader 2.0 support (Nvidia 8000 or better)
    • DirectX Version: DirectX 9
    • Sound: DirectX 9 compliant sound device
    • Hard Drive: 3 GB available hard-drive space
Customer reviews
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Mixed (92 reviews)
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71 reviews match the filters above ( Mixed)
Most Helpful Reviews  Overall
27 of 27 people (100%) found this review helpful
1 person found this review funny
8.7 hrs on record
Posted: August 10, 2014
I played Space Siege as a result of a random Steam Roulette spin, and I was blown away by how great of a game it is!

The game revolves around the invasion of a race of aliens known as the Kerak, who are bent on the elimination of the human race.

The game is top-down, and plays somewhat like Diablo 3. The story is fantastic, with hints of Mass Effect, Dead Space and Deus Ex: HR. Those who enjoy those games will probably love this.

The game is a little old, it was released in 2008, and the control system is definitely a little dated. Everything else is generally great, but if you are going to play I would highly recommend you ensure that you had a way to use the keybinds ingame (especially Map, Health Pack and "Collect all loot", these are imperative). Sadly, the game has no method of rebinding keys, so this might be a chore. I use a Razer Naga and bound the imperative keys to the sidebuttons and it worked like a treat.

I can't emphasise this enough, this game is fantastic! It took me 8-9 hours to fully complete the game, while collecting the sub-story Data Pads, and loved every minute of it. Again, if you liked games such as Mass Effect, Deus Ex: HR, Dead Space, with the playstyle of Diablo 3, you'll enjoy this game a lot.

Highly recommended.

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13 of 15 people (87%) found this review helpful
36.8 hrs on record
Posted: September 23, 2014
It's worth playing, the story and mechanics are pretty good, the big decisions will make you have to play differently, but lead you to the same places in the end. It's not bad but could use a little more.
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13 of 15 people (87%) found this review helpful
1 person found this review funny
8.0 hrs on record
Posted: January 15
No where near as bad as some of the reviews make out, Space Siege is by no means perfect, but is still a fun Diablo clone in space.
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10 of 10 people (100%) found this review helpful
8.8 hrs on record
Pre-Release Review
Posted: October 5, 2014
A great top down RPG that reminded me of Shadowgrounds with RPG type upgrades. The story is susprisingly engaging and while you don't effect the story a lot with your choices you do have a little impact. The gameplay is solid, the game never crashed on me, the graphics won't wow you but are not an eye sore. Overall it's a good little game. Doesn't break new ground but is pretty polished. Easily worth the $15 asking price.
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12 of 15 people (80%) found this review helpful
11.7 hrs on record
Pre-Release Review
Posted: June 22, 2014
Is maintaining your humanity more important than your life?

Space Siege was a surprisingly good game. With fluid combat gameplay and light-RPG mechanics, Gas Powered Games managed to craft a unique but short story-driven experience. There are plenty of upgrades to pick from, and hordes of enemies to blast through. The combat itself is heavily action-based with little real strategy involved, and the more memorable aspect of this game for me was actually the choices between whether or not to cybernetically enhance myself. The game reminds you, in no uncertain terms, that enhancing yourself will make you vastly more powerful but that each enhancement will also slowly deprive you of your very humanity.

So I ask you again: is your humanity worth dying for?
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18 of 27 people (67%) found this review helpful
2 people found this review funny
Not Recommended
3.1 hrs on record
Posted: October 17, 2015
I liked the Dungeon Siege games, so I wanted to give this a chance despite the bad ratings.

After 3 hours in, I can not give a full review, but here are a few thoughts:
- most generic setting, story, characters, levels and enemies I have ever encountered in a game
- very very boring in every way
- super repetitive gameplay, no challenge, no interesting/useful skills
- bland shallow RPG elements, irrelevant skill tree ... there is only one way to use all the scrap you collect all the time, no real choices
- annoying camera glitches
- crashes at start until you find out about some additional drivers you need to install (actually an easy quick fix, described in the forum)

Don't waste your time and bandwidth for downloading this, no matter how cheap it might become.
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9 of 11 people (82%) found this review helpful
12.0 hrs on record
Pre-Release Review
Posted: November 2, 2014
By the same guys as DS2 - decently fun gameplay, decent story (but has holes if you look too closely)
I had fun, and don't feel my 12 odd hours where wasted.
It is kind of hamhanded about loss of humanity, but eh.
It was kind of fun!
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25 of 42 people (60%) found this review helpful
Not Recommended
13.0 hrs on record
Posted: September 2, 2014
"You can’t always get what you want. But if you try, sometimes you get what you need.”

At first sight Space Siege looks like a top-down shooter with interesting physical effects and multiple weapons you can customize. However, a closer look at these features reveals that there is only one melee weapon and the rest of your ranged weapons only differ from each other in terms of damage and firing rate (lacking tactical variety).

The controls feel awkward and lack precision. In addition, the inability to change the keyboard mapping should be seen as a below-average gameplay feature nowadays.The characters are displayed in a stereotypical way and remain simple points of story related elements. Your only companion, in form of an android, will stay silent during your entire journey.

Further shortcomings are the lack of side quests and dismal layout of levels. The cybernetic choices are a bit more meaningful, but its implementation feels rushed and unbalanced.

Overall, Space Siege is a simple game with monotonous gameplay. It leaves too much to be desired, in order to be recommended.


The game has no Steam achievements.


Space Siege (PC)
Top-down shooter
(Science-Fiction) – 2008
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8 of 11 people (73%) found this review helpful
Not Recommended
3.4 hrs on record
Posted: July 14, 2015
I decided to get this game despite the mixed scores. However, all I can say is that the game feels as mediocre as they get. Generic combat, generic corridors, generic enemies, generic humans vs aliens story.

Most of the gameplay is an isometric shooter. Point at an enemy with your mouse and shoot. Seems like controls are simple enough. However, the enemies shoot back at you, and your only way to avoid getting shot is to roll dodge, and you have to aim it with the mouse in the direction you want to roll. So somehow you have to manage to shoot and roll dodge at the same time with just 1 mouse. And then we also get the annoying camera rotation, which is inverted. When I want to rotate left, it rotates right, and vice versa. Maybe there's a way to change this, but I didn't see it.

You get a robot companion too, but it's just a regular sidekick really who acts as an extra gun in battle. You can give him a few basic commands, like attack, defend, and heal, and you can upgrade his stats just as you can upgrade your own, but there's nothing much else to it. You can probably play the whole game without ever using it.

You can also get cyber implants and use skill points to improve your abilities, but it's all presented in a very generic and uninteresting way. Nearly every skill is a passive which just improves your damage or a critical chance by a couple of % and that's it. Not to mention, half of the abilities require you to have a specific cyber implant, and from what I've played so far, I've only found the one for the eye, so there are plenty of abilities in my upgrades menu that I can't use yet, and no idea when I will.

The fact that enemies all look and act alike, makes every single battle feel the same. Throw a couple of grenades into the group and fire away till naught's left. Rinse and repeat. But then fighting enemies isn't so bad when you consider that 95% of the time you're walking and backtracking with nothing happening.

You might enjoy this game if you're into dungeon crawlers with no story and simply need to play every single one out there, but otherwise I wouldn't really recommend it.
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8 of 11 people (73%) found this review helpful
2 people found this review funny
Not Recommended
0.2 hrs on record
Posted: October 21, 2015
I played this game a long time ago and i only had to load it once to remember why i stopped playing back then.
In the basics this is an RPG lite game.
That means that it is an action game with some RPG elements like skills and leveling.
In a way the controls feel like Dungeon Siege.
Only that had a good story and never got boring..

When playing this at first i was happy with the game.
After a few hours things got really repetive and in the end i stopped playing and moved on to other games.
The problem is that after a while you feel like there is no progress.
Not in the gameplay and the graphics that are mostly made of the same textures and grey colours.
Combine that with a B like storyline and i in the end couldn't care less anymore.
It's not that the game is really bad but compared to what Chris Taylor has done before and after this game, it is mediocre and to simple.
Go play the first two Dungeon Siege games, Supreme Commander and Demigod and you'll figure this out pretty quickly.
I'd give this game a rating of 5,5 out of 10.

So the conclusion is this isn't really a bad game.
Graphics are decent, sound ok, the story mediocre and the gameplay is repetive.
After a while you'll probably loose interest in this one and not return.
I would really like to love this game because of the man who made it but there just isn't much there.
It's your choice.
You have been warned
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Recently Posted
8.7 hrs
Posted: October 7
A bad action game.
Helpful? Yes No Funny
3.8 hrs
Posted: July 19
There is a good game hidden under wonky controls and a poor camera view, It was worth a play through. Wait for a good steam sale and enjoy.
Helpful? Yes No Funny
0.6 hrs
Posted: April 1
Well, that was bad.

I mean… really bad.
Helpful? Yes No Funny
0.8 hrs
Posted: March 11
A fun little sci-fi hack'n'slash in the vein of Space Hack. Well worth the price.
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48.4 hrs
Posted: November 30, 2015
Updated Review:
Wow, this game really is awesome! After having finished the game, I have to amend my original review. The control scheme took very little time to get used to and I actually like it now. As for the level design and enemies, this game did as well as most any I've played - there were enough different enemies to keep it interesting and though there was not a ton of variation in environment, the levels were still each unique enough to make it fun.

The plot is cool, for a game that's designed to be linear, not an open world for exploring. I definitely like the upgrade system - if you're diligent about destroying everything for upgrade parts, you'll have more than enough to upgrade yourself, all your weapons, and your robotic companion. The skill tree is pretty cool - it's important to note that you will not get enough points to fill out the entire skill tree so you have to make some choices about what's best suited to your playing style.

One issue I had at a few points during the game is the path-finding ability of the companion robot, though he was able to follow most of the time. Beyond that, I really have no complaints and it was enough fun that I will likely play through again.

Original Review:
I've only played for a little over an hour - just the first couple of missions - and I can see what some of the negative reviews are talking about. The two main issues seem to be the bad control scheme and repetitive level design.

First, the control scheme is pretty wonky - it kind of reminds me of Harbinger, a 2003 action RPG developed by Silverback Entertainment and published by Dreamcatcher Interactive. It would play a lot better with WASD movement like the Halo games Spartant Assault and Spartan Strike. Second, I can already see some repetitive design in the environment and the enemies.

Despite these issues, I'm really enjoying the game so far. I like the (admittedly simple) skill tree and the weapon/armor upgrade system. It's certainly not an in-depth system you'd expect out of a more hardcore RPG but it's a nice, light, action RPG, reminiscent of games like Diablo. It would be nice to be able to carry more than four health packs but that's pretty minor. Overall, I find it to be a good time-waster of a game. I suppose my opinion might change as I get further into the game but, so far, it's been a lot of fun.
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11.6 hrs
Posted: September 18, 2015
A nice little ARPG. Are there better? Sure. But we all know those titles, and have had our fun with them. For a little game with a little price tag it's fun. I wouldn't spend more than $10 on it but it's worth the $10.
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8.6 hrs
Posted: September 3, 2015
This game offers some good enjoyment to play trough.


Do not buy this unless you are prepared for the horrendously annoying issue of this game not being updated anylonger and constantly having issues with crashing before starting.

There are some solutions that can be tried like the 4Gb patch *google it* or some say it can work if you download the demo version to.
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