There are varying levels of technology used in Ergo Proxy, mostly determined by the actual Dome in question and the Proxy who created it own personal desires. It can range from the ultra modern Spartan stylings of Romdeau to the pseudo-21st century township.
The Protective DomeEdit
The same kind of Dome is used throughout the world of Ergo Proxy. It uses two methods to protect its citizens from harmful toxins, enviromental hazards and radiation. Firstly the dome is actually a large metal(an unknown alloy) dome that encases the entire city. This thick plating protects the city from not only attack but varying levels of radiation. It's assumed that the metal dome is energized to some degree to maintain its intergrity and to create a fake sky as a catastrophic power loss leads to the dome itself collapsing. The second method is an actual forcefield of sorts that aids the metal structure by not only maintaining its integrity further but also further protection from Radiation and other enviromental hazards. The dome is quite sturdy but a direct attack from a thermo-nuclear attack can break both the shield and the metal plating.
Romdeau's use of technology is based on the principle of a merchant's market. Nearly every piece of technology or any item in general is built to be high maintenance, highly inefficient and prone to breaking/malfunctioning. This is done deliberately to push the idea on citizens to constantly consume goods and throw them away once they're out dated, with little regard for longevity of the product (or for that matter, the citizen's wallet). Apart from this, there are some exceptions to this rule when it comes to technology that actually matters for Romdeau's survival.
Romdeau's vehicles weren't very different from modern times; they mostly possessed Cars, Trains/Trams, Blimps, very short range aircraft (more patrol craft for the dome than anything), short-range craft that were used for expeditions outside the Dome and of course long range aircraft that were used for inter-dome travel, or invasions.
U4 Long-Range CraftEditUsed in the Mosk mop-up operation to deliver armed AutoReivs.
Weaponry and BallisticsEdit
Romdeau makes use of primarily projectile based weaponry, this ranges from double-action pistols, pump-action shotguns, sub-machine guns, sniper rifles and even remote-controlled droids. Romdeau's spartan stylizing continue to influence even its weaponry which consist of very streamlined, sleek designs.
C&S Detective Special 219.Edit
This single shot personnel defence weapon is referred to by fans as 'The Proxy Killer' as it's used by Re-L Mayer for delivering a FP Payload into a Proxy. The weapon is only ever fired once by Re-L but appears incredibly accurate for such a short barreled weapon. The gun is loaded via a single shot swing out chamber. Due to it's limited ammo capacity the weapon acts more as a panic or self defence weapon and would have no place in an actual firefight. Due to the Detective Special's light weight and compact design, it allows for Re-L to carry it alongside her shotgun sidearm without significant encumbrance.
The design and name is in homage to Rick Deckard's pistol that was used by Harrison Ford in the movie Blade Runner.
'Awakening' R-SCG12 ShotgunEdit
Awakening acts as Re-L Mayer's sidearm throughout the show and is one of its more inconsistent designs. While it is constantly fired and portrayed as a double barrel shotgun in other scenes it will appear to be a regular single barrel pump-action shotgun. The 'double shot' effect could be explained with a limited semi-automatic function but it's more likely something used for artistic and 'cool' factor. Due to it's ability to pierce through the metal plating of armoured autoreivs, it's likely that it fires either a very high gauge shot or a solid armour piercing slug.
The design is in homage to the shotgun used by the Bounty Hunter and Mercenary Johns from the movie Pitch Black, which was based on the Spas-12 Shotgun.
R-D762 Long ShotEdit
The R-D762 Long Shot is a single shot rifle that is used by AutoReiv Disposal to take care of infected AutoReivs at long distances. The rifle is only seen in use during the ADW project, during the martial law period where all Auto Reiv's were to be disposed off. Whether the rifle is the upgraded equipment AutoReiv disposal had been looking for or just a weapon that rarely had its uses is unknown.
The Centzon is a sailboat or airship that relies totally upon the wind not only for it to move but in order for it to continue floating off the ground.
It was originally owned by an Autoreiv named Dorothy of Garland, but was built by 'the professor'
Terran Technology is technology that was left behind by humanity. This technology is quite rare as not much survived the environmental disaster that forced Humanity to reach for the stars and leave their home planet in the hands of the Proxies. The majority of technology that was left behind survived due to underground caches, so it's mostly weaponry.
Type 89EditThe Type 89 rifle was developed by HOWA Machinery Co., Japan, for National Defence Forces of Japan. It is a select-fire, gas-operated, rotating bolt firearm that was used by the Scavengers to defend themselves againsts the Romdeau remote control sentry drones.
SA-80 (?)EditThis Carbine appears to be the British made SA-80/L85 but has a slightly different carry handle and sights. It was used along side the Type 89 by the Scavengers outside Romdeau.
The L85 is a gas operated, magazine fed, selective fire rifle of bullpup layout.