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Platform
Windows
Engine
Custom Built
Developer & Publisher
InnoMen Productions
Official Page
Innomenpro.com
Contact
Send Message
Genre
Tactical Shooter

Average Rating

8.2

Ratings closed

-

Set in the year SE 3256, the player is thrust into mankind's first interplanetary war between the Earth Alliance and the Ares Confederation. As the promising captain of the experimental dreadnought prototype, codenamed Sierra. Your sole objective is to help turn the tides of the war, utilizing the ship's advanced combat systems, flexible energy allocation and optimized platform deployment capabilities. To the captain, the core principles of prudence, guile, resource management and patience are essential to survival. The technology incorporated in Sierra allows it to explore multiple paths to victory: evade and assault enemy ships in classic broadside warfare; research armaments and upgrades to outgun the enemy fleet; or outnumber them with remotely-controlled weapon platforms. Rout the enemy’s armada in order to quell the rebellion and save Earth from the corrupt colonials.

  • Opening Sequence
  • Main Menu
  • Mission Select
  • Additional Screenshots
  • Development Screen
  • Additional Screenshots
  • Additional Screenshots
A Great Beginning and IndieGoGo campaign

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A Great Beginning and IndieGoGo campaign

After a long hiatus, we present to you the sequel to our previous game Operation SD: Space Defense.

Jan 12, 2014 News
Operation SD: Space Defense Rebuild August Update

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Operation SD: Space Defense Rebuild August Update

We have finally opened our website where updated content will be posted two to five times a week. If you wish to track our detailed progress, simply visit regularly or subscribe to our RSS feed. If you...

Aug 7, 2013 News
Operation SD: Space Defense Rebuild Progress

2

Operation SD: Space Defense Rebuild Progress

"Sierra Ops" is the new title of our old release, Operation SD: Space Defense. It will contain new features such as discussion and briefing cut scenes, friendlier UI design, better introduction CGs, more...

Jul 1, 2013 News
Tips and Tricks

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Tips and Tricks

If you're having a problem finishing a stage in Operation SD, just remember the following general tips and tricks.

Apr 23, 2012 Article
Operation SD: Space Defense Released on Desura

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Operation SD: Space Defense Released on Desura

Thrust into mankind's first interplanetary war between the Earth Alliance and the Ares Confederation.

Apr 9, 2012 News
Comments  (0 - 10 of 57)
liamdawe
liamdawe Aug 18 2013, 1:51pm said:

Looks awesome, any chance of a Linux version? Can give it a shout out on Gamingonlinux.com

+1 vote     reply to
Kalus
Kalus Aug 19 2013, 8:02am replied:

Sierra Ops, the Operation SD Rebuild is being made in Unity, So yes a Linux release is indeed planned.

+1 vote     reply to
liamdawe
liamdawe Aug 20 2013, 6:34am replied:

I read the post in the news section but it's a bit confusing, so you are re-building the game in Unity and it will support Linux? Is that about right?

+1 vote     reply to
Kalus
Kalus Aug 21 2013, 12:12am replied:

Yep, that is correct.

+2 votes     reply to
Watsong
Watsong Jul 12 2013, 4:47pm said:

Very good game! I enjoyed it a lot! Great music, gameplay and graphics. Looking forward to the forthcoming overhaul. This game reminds me of the Japanese game "Liberation Army".

+2 votes     reply to
Kalus
Kalus Jul 14 2013, 5:27am replied:

Thanks, I did get some inspiration from Liberation Army too. XD

+1 vote     reply to
Kalus
Kalus Jul 12 2013, 1:20am replied:

Hmmm, if you don't see the Transitions folder inside the Content folder then something must have gone wrong with the downloading/installing process.

Also, there should be 3 files inside the Operation SD savedata folder (the one inside your documents folder) namely ShipDataFile, MissionDatabse.csv and ErrorLog.txt.

if you see all of them there and you still have an error then try downloading standalone version. I tried installing via Desura on my end and it worked out just fine so I am quite stumped at the moment on what the problem on your end is XD.

+1 vote     reply to
SERgius
SERgius Jul 12 2013, 1:40am replied:

Uh right. where to find taht stand alone version...
XD

+1 vote     reply to
Kalus
Kalus Jul 12 2013, 1:53am replied:

try going to this link.

Desura.com

+1 vote     reply to
SERgius
SERgius Jul 12 2013, 12:03pm replied:

Thank you. the game is finally running but the small videos still have that half a screen thing. everything else is fine.

+1 vote     reply to
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Theme
Sci-Fi
Project
Indie
Players
Single Player
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