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In System Protocol One you play the role of a network operator in the future, securing valuable data from hordes of faceless hackers. Build up your server’s defenses to withstand waves of incoming viruses and keep the system clean.
Release Date: Dec 7, 2010
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Buy System Protocol One

$4.99

About the Game

In System Protocol One you play the role of a network operator in the future, securing valuable data from hordes of faceless hackers. Build up your server’s defenses to withstand waves of incoming viruses and keep the system clean.

Key features:

  • Over 20 levels of exciting gameplay
  • Tower defense strategy with arcade sensibilities
  • Fun retrofuture graphics
  • A killer original score
  • Over 30 Steam achievements
  • Global leaderboards

PC System Requirements

    • OS: Windows 2000 or later
    • Processor: 2 GHz or higher
    • Memory: 1 GB or higher
    • Graphics: Resolution at least 1024x768, GeForce 8600 class or higher, or comparable
    • DirectX®: 9.0 or higher
    • Hard Drive: 200 MB

Mac System Requirements

    • OS: OS X version Leopard 10.5.8, Snow Leopard 10.6.3, or later.
    • Processor: 2 GHz or higher
    • Memory: 1 GB or higher
    • Graphics: Resolution at least 1024x768, GeForce 8600 class or higher, or comparable
    • Hard Drive: 200 MB
Helpful customer reviews
238 products in account
41 reviews
5.9 hrs on record
System Protocol One is a very themed tower defense. Not only that but it does a good job creating both the tower defense and the central theme without sacraficing one for the other. The gameplay is what you would expect from a block based tower defense. You have your standard array of rock-paper-scissor enemies and towers and for the most part there is no one correct way to win. Mind you, the game can be a tad unforgiving on higher levels almost requiring you to do the "correct" build to win. And as always, there will be those who choose to juggle. I find juggling to be a cheap exploit, and if the game relys on you doing it to win then the game is fundamentally flawed in terms of balance. But overall System Protocl One is worth the price. It may be a bit too unforgiving for some, but it is still enjoyable.
Posted: February 9th, 2014
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32 products in account
13 reviews
0.6 hrs on record
Ugh. I loooove tower defense games but this one is dreadful. After the lengthy and tedious tutorial my first game was so annoying I didn't even bother to finish. Those are minutes of my life I will never get back.
Posted: February 2nd, 2014
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247 products in account
23 reviews
14.0 hrs on record
Looking back, this is probably the best tower defense game I ever played. It's got some serious flaws though, including a whole section you can't play because they changed the way compressors work and never fixed the levels. Also most of the towers are useless. All you really need are walls and ping cannons for the ping cannon god.
Posted: January 23rd, 2014
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