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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
2 of 2 people (100%) found this review helpful
359 products in account
1 review
19.7 hrs on record
Honestly, this game is fantastic and was an amazing game from the moment I opened the game the very first time. The soundtrack is also glorious, especially my favourite song, Diskettamine, and really lends the game a beautiful and atmospheric tone while also conveying the urgency of the situation, even before the panic effects of the songs kick in.

I think this game deserves more recognition than it's gotten, as it is just as complete and unique as any tower-defence game I've played thus far. So, honestly, yes...I would recommend this game hundreds of times over. It's easily a 10/10 if you take a little time to learn the game on the easier difficulties before finally opening up a two-plane server on Frumious.
Posted: July 21
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837 products in account
253 reviews
5.2 hrs on record
Great game, highly recommended!
Posted: July 28
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3 of 3 people (100%) found this review helpful
257 products in account
63 reviews
11.5 hrs on record
tower defense with a sweet chiptune techno soundtrack that will haunt your dreams. the gameplay balance and graphics hit just the right tone of seemingly simplistic and yet richly rewarding.
Posted: December 24, 2013
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1 of 1 people (100%) found this review helpful
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 23
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1 of 1 people (100%) found this review helpful
140 products in account
4 reviews
4.1 hrs on record
First off let me say, this is Tower Defense done right. Even with the lack of a plethura of towers to chose from, this game makes you think about how you play and what towers you put where. Most other tower defense games will allow one super tower to be massed and blow everything out of the water with no problem at all, but these developers made it a priority to tell people that just one tower will never work.

While I will say that every tower defense game playe should own this, I'll also say that for the price it's a bit lacking. If you can get it on sale, do not hesitate to add this to your game library!
Posted: December 18, 2010
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