Synth

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|image=FileSynths full.jpg|250px
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The '''Synths''', or '''Synthetics''', is an all-encompassing term for the alien creatures the Combine uses as shock troops for its invasion force. They are featured in ''Half-Life 2'' and its episodes.

==Overview==
FileD3 citadel 050339.JPG|200px|left|thumb|Crab Synths and Mortar Synths being transported on a conveyor belt.

The Synths are self-replicating robots/biomechanical organisms that evolve, were created or taken over by the Combine and enslaved through their conquests and wars. They are the backbone of the Combine's subsequent armies,''Half-Life 2 Prima Guide'', page 34 and usually the most feared troops. They are constructed deep in the bowels of the Citadel.''Half-Life 2 Prima Guide'', page 28

The encountered Synths typically appear as average to large insect-like or arthropod-like creatures, usually with segmented legs or antennae-like sensory structures, recalling locusts, crabs or similar beings.

It is unknown how many of the Synths presented in the series are 'true' to their initial species or forcefully evolved by the Combine, since the Combine modify their appearance by adding mechanical equipment and weaponry. It is also unclear whether they originally were fully organic or were already cyborg creatures when the Combine enslaved them, and if they all come from the same planet. The Strider however appears to have a brain, as seen in ''Episode Two'' (this is the only known Synth to possess any "organ" at all). It is also suggested that some were created from scratch by the Combine.

It is likely that Synths were the primary forces used by the Combine during the Seven Hour War as the human-derived Combine units, such as Overwatch Soldiers, Hunter-Choppers, and APCs, would have only started appearing after the Combine rule on Earth had been established.

==Known Synths==
FileDog vs Strider Outlands.jpg|250px|right|thumb|Dog attacking a Strider in the Outlands, as seen in the second ''Episode Two'' teaser trailer.

*Advisor pod
*Combine Advisor
*Combine Dropship
*Combine Gunship
*Crab Synth
*Hunter
*Mortar Synth
*Strider

==Behind the scenes==
FileD3 citadel 02084.JPG|200px|right|thumb|Combine Gunship factory in the Citadel.
===Dhabih Eng===
According to Valve artist Dhabih Eng, when approaching the task of designing the Combine's larger creatures, it was necessary to keep in mind that these lumbering war machines were possibly once organic creatures that the Combine had enslaved and converted during previous invasions. Therefore they tried to incorporate elements that were neither strictly organic nor purely mechanical. They didn't want to have giant alien creatures with armor attached or implants added, but instead tried to treat it as a forceful evolution of thee characters imposed on them by the Combine rather than nature. In the end, the designs intentionally blurred the line between the machine and animal, in their appearance and more importantly their motion and how they reacted to the world around them.''Half-Life 2 Raising The Bar'', page 88

===Ted Backman===
According to Valve artist Ted Backman, he was really interested in a lot of the synthetic life-form research done in the WikipediaLos Alamos National Laboratory|Los Alamos National Laboratory where they have little insects, and instead of being hard coded with instructions on how to deal with the environment, they learn, evolve, and try to serve their own ends, and in doing that, they get these emergent behaviors.

Backman thought it would be really cool if someone created a thing that instead of worrying about having to repair, upgrade, or maintain itself, it made a new version of itself every five years. It could evolve on its own and turn into a synthetic life-form that is a lot more useful and interesting to keep around in large numbers as an invasion force.  They have been calling them Synths for a while.

His inspiration was from WikipediaList_of_Alien_characters in ''WikipediaAliens (film)|Aliens''. When Bishop got torn open at the end of the movie, the viewer can see the entrails, but they were obviously corrugated pipes - all this fluid that came out that looked like blood or lymphatic fluid, but it was obviously some sort of oh hydraulic fluid. Backman took it from there and thought, 'Well, what if these things were actually kind of growing themselves? Maybe the Combine doesn't even really know how to make them anymore, they don't even know where they came from. They can't even maintain; they just keep them as their own domesticated wildlife.'''Half-Life 2 Raising The Bar'' (uncorrected proof), page 268

===Cut Synths===
*Combine Guard (Synth)|Combine Guard (part-human, part-Synth)
*Combine Super Soldier
*Combine Synth Elite Soldier (part-human, part-Synth)
*Sacktick
* Synths 2|Unidentified cut Synth



==Gallery==
===Retail Synths===

FileAdvisor Ep2 model.jpg|The Combine Advisor.
FileAdvisor pod front.jpg|The Advisor pod.
FileCombine Dropship.jpg|The Combine Dropship.
FileGunship.jpg|The Combine Gunship.
FileCrab Synth1.jpg|The Crab Synth.
FileHunter.jpg|The Hunter.
FileMortar Synth front.jpg|The Mortar Synth.
FileStrider crouched.jpg|The Strider.


===Cut Synths===

FileCombine guard.jpg|The Combine Guard (Synth)|Combine Guard.
FileCombine Super Soldier.jpg|The Combine Super Soldier.
FileCombine Synth Elite Soldier4.jpg|The Combine Synth Elite Soldier.
FileSacktick.jpg|The Sacktick.
FileWasteland Scanner.jpg|The Wasteland Scanner.
FileSynth concept 2.jpg|Unidentified Synth.{{efn|It is seen alongside a Crab Synth in ''Raising the Bar''. By comparing the size of the Crab Synth model and the concept art in which both Synth are portrayed together, this Synth was to have the size of a big Headcrab.}}


==List of appearances==
*''Half-Life 2'' {{1st}}
*''Half-Life 2 Raising the Bar''
*''Half-Life 2 Episode One''
*''Half-Life 2 Episode Two''

==Notes==
{{notelist}}

==References==
{{Imagecat|Synth images}}
{{Reflist}}

{{Combine}}
{{Creatures}}
CategorySynths
CategoryCreatures
CategoryCombine
CategoryEnemies
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