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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.
Release Date: Oct 6, 2010
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About the 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
2 of 17 people (12%) found this review helpful
353 products in account
95 reviews
1.5 hrs on record
This game is very bad.
Posted: August 11th, 2014
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1 of 15 people (7%) found this review helpful
107 products in account
19 reviews
0.3 hrs on record
Sucks.
Posted: August 12th, 2014
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12 of 60 people (20%) found this review helpful
13 products in account
1 review
0.6 hrs on record
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
Posted: August 8th, 2014
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19 of 30 people (63%) found this review helpful
609 products in account
37 reviews
0.7 hrs on record
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.
Posted: February 15th, 2011
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4 of 4 people (100%) found this review helpful
186 products in account
40 reviews
1.5 hrs on record
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.
Posted: June 3rd, 2011
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