Earth is under siege! A mysterious and powerful alien race has come to enslave the entire galaxy, and your fleet is humanity's last hope. You must put an end to the attacks and rebuild a home for the survivors.
User reviews: Mixed (37 reviews)
Release Date: Oct 6, 2010
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About This Game

Earth is under siege!
A mysterious and powerful alien race has come to enslave the entire galaxy, and your fleet is humanity's last hope. You must put an end to the attacks and rebuild a home for the survivors. With the invaders in hot pursuit, and the dangers of the unexplored at every turn, do you have what it takes to forge a new galaxy?

Key features:

  • Team up with up to 4 players and explore the galaxy.
  • Enjoy challenging action, smart puzzles, and deep adventure.
  • Customize your ship with a huge selection of parts.
  • Use physics to solve puzzles or defeat your enemies.
  • Create your own galaxy using the built in editor.
  • Download new galaxies from other players for endless gameplay.

Proto Defense DLC

Source Studio is pleased to announce it's first Arcade map: Proto Defense!
Proto Defense is the first online multiplayer co-op turret defense game for ProtoGalaxy. Team up with your friends to defend Earth from alien invaders in this unique turret defense experience.

Key features:

  • Team up to defend Earth from alien invaders.
  • Pick from a big selection of turrets.
  • Reposition your turrets at any time to deal extra damage.
  • Take down huge bosses.
  • Compete in leaderboards for the highest score.
  • Tackle 8 new challenging achievements.
  • Built using the ProtoGalaxy Editor.M

System Requirements

    • OS: Windows XP SP3/Vista/7
    • Processor: 2GHz or equivalent processor
    • Memory: 1GB
    • Graphics: 256MB video ram or better (GeForce 7 series or higher/Radeon X600 series or higher)
    • DirectX®: 9.0c
    • Hard Drive: 1GB
    • Sound: Windows compatible sound card
Helpful customer reviews
8 of 10 people (80%) found this review helpful
5.2 hrs on record
Posted: September 8
ProtoGalaxy is a classic example of a shootemup or bullethell game, it reminds me of pretty much every classic arcade rail shooter I have ever played. one major difference here is that there is a map builder and story missions, those are a pretty neat addition.

ProtoGalaxy looks super old, and there is no multiplayer community whatsoever, but the game is free so that is another plus, it provides a decent amount of single player fun and I would recommend anyone interested in the classic arcade feeling of the game to go ahead and give it a try. I have not had any problems with the game besides the Steam achievements not working.
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5 of 9 people (56%) found this review helpful
4.1 hrs on record
Posted: August 31
Great concept and its gone free to play WITHOUT in game purchases, so as of now if people complain dont listen to them, what do you expect for a free game, its a top down shooter set in space, it has a great ship upgrade and co-op system with great space mechanics for a top down shooter, however it needs to be develped for mac and the thrusters need to change depending on the way you face.
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20 of 33 people (61%) found this review helpful
0.7 hrs on record
Posted: February 15, 2011
SHMUP+Upgrades+Coop = Great but, without really any online community to speak I suggest you buy this game with 3 others if you plan to really enjoy it.
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5 of 5 people (100%) found this review helpful
1.5 hrs on record
Posted: June 3, 2011
A fairly fun scrolling shooter with a lot of ship customization. It lacks a bit of polish, and the upgrading system is kind of confusing, after you get the hang of it, you should be fine. It features four-player co-op as well (even local co-op), which is always a plus. It might not be worth the $9.99 price tag, but I'd say it's worth the $3.40 sale price for sure.
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5 of 9 people (56%) found this review helpful
315.9 hrs on record
Posted: November 24, 2010
This game has a truly powerful engine for building levels! Once the community gets strong, endless bullet patterns for everyone!
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2 of 4 people (50%) found this review helpful
0.2 hrs on record
Posted: December 2, 2010
Garbage... gameplay is poorly explained and the menus suck ♥♥♥. AND I'm into indie games...

1/5 Stars
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3 of 7 people (43%) found this review helpful
0.1 hrs on record
Posted: October 7
Great game for the pc
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1 of 3 people (33%) found this review helpful
0.3 hrs on record
Posted: January 8, 2012
I bought this game from the steam store in December 2012.
In August 2014 they made it free and took it out of my steam library.
This has put an end to my steam game collecting hobby.
Someone's thoughtless behaviour has spoiled my fun and I'm not happy.


original review:
Innovative and fun shoot 'em up.
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1 of 3 people (33%) found this review helpful
0.3 hrs on record
Posted: November 9
the gameplay is fun...turret can be damaged before you place it, need to fix that...& make simpler tutorial & put it at the main menu...
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0 of 1 people (0%) found this review helpful
7.3 hrs on record
Posted: September 30
Yes
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5 of 18 people (28%) found this review helpful
3.5 hrs on record
Posted: November 24, 2010
Fun as ♥♥♥♥. It's like a shmup with some puzzle elements. Plus there's a level editor. ♥♥♥♥ yea!
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2 of 16 people (13%) found this review helpful
0.1 hrs on record
Posted: January 21, 2013
♥♥♥♥♥♥ controls, drained my ♥♥♥♥s to zero and fast.
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5 of 26 people (19%) found this review helpful
0.9 hrs on record
Posted: March 23, 2013
WTF!
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6 of 38 people (16%) found this review helpful
1.5 hrs on record
Posted: August 11
This game is very bad.
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5 of 37 people (14%) found this review helpful
0.3 hrs on record
Posted: August 12
Sucks.
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13 of 68 people (19%) found this review helpful
0.6 hrs on record
Posted: August 8
The game is the first impression to me is bad after started the game found is really awful
The first level as long as along the screen can run smoothly but by the second difficult moments The enemy configuration disgusting even Also puzzles Each piece of "building blocks" to find otherwise unable to pass
Is the only set novel gravity gun You can drag and drop the enemy meteorites Even the enemy's bullet This is the highlight of the game
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0.2 hrs on record
Posted: December 7
Was this review helpful? Yes No
0.5 hrs on record
Posted: June 4, 2011
Protogalaxy did not impress me. It's a pretty straightforward arcade game: seperate controls for moving and firing; try to manage both as best as you can while you're being bombarded by up to a dozen enemies at once.

The tutorial it thin. But what really put me off is that it's the kind of game where you might play a 5-minute level for 4:30, fail at the end, and then have to start the entire level over. Bleh. The repetition is painful.

I do not recommend this game.
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