Android Types

Android World and Android types inhabiting
Ranked most common to rarest
Dullahan Class Android
Developed by [REDACTED], the Dullahan Class Android began as basic maintenance droids for space stations before being developed further to being the first sentient android (citation needed) due to a special algorithm developed by [REDACTED], they are the leaders of the planet's lone city. Names are given to androids via their serial numbers {e.g. CH4R-L0TT3 "Charlotte", or L0-L4 "Lola"}, although some androids have to give themselves names or give themselves nicknames. All Dullahan Class Androids are female, an attempt was made by the androids to make males, but due to perverted tendencies shown in all of them they were destroyed, though it is possible some have survived.
Hermit Class Android
Although far from looking human, the Hermit Class android shares the same sentience of the Dullahan class. Notable by their large shell-like armor, Hermit Class are mostly used in law enforcement, developed by R0-53 in a weapons program spearheaded by 0L-G4. Hermit Class are far from social and typically reside in their shells.
CBR4-8 mk4 service droids
Typically taking maintenance jobs in the city, CBRs are typically lacking sentience algorithms, though some of them are sentient and mostly have male AI. Non sentient CBRs that aren't used for maintenance are kept as pets or companions. CBRs predate the Dullahan class by 45 years.
X-85j Riot containment droids
Another result of the "HALBERD" weapons program from Special Operative 0L-G4, the X-85 is a large quadruped self aware tank used for transport and riot suppression during major attacks on the city. Created after the prison break incident, the droids have signal disruptors set to civillian frequencies to interrupt riots by temporarily disabling combatants.
CBR2-3 mk0 service droids
An especially rare sight, CBR2s are the oldest active droids on the planet, predating the more up to date CBR4s by 60 years, there's only one confirmed case of a CBR2-3 with sentience algorithms, a jailbroken and modified model currently owned by R0-53, the rest are kept as novelties.
R-G78t "Rosepetal" prototype tank droid
Only one in current existence, the Rosepetal was yet another design by R0-53 in the HALBERD program, made for the highly hypothetical circumstance of the city being invaded by {quoted from creator} "Fuggin, giant space lizards with minigun eyes or some shit" -R0-53 (Addendum: Please never question Rose on her ideas again ~Miranda). The only existing G78 is still in testing but quickly proving dangerously lethal, possible further development will be made
St-93.4 transport tank.
A prototype made by the Frame Society (citation needed), the St was never actually made past an unfinished prototype, which was taken by android 4L-1C3 in replacement of her frame's legs, it is hypothesized by historians and analyzers of the prototype that it was meant as a flexible transport for rapid deployment of Frame Society weapons.
Any and all Frame Society droids
After the destruction of the remaining Frame Society strongholds it is possible droids of their design have escaped into the surrounding wild, if a Frame Society droids is spotted and still active report so immediately for detainment and destruction of it.