I was reading through some old interviews of Isaac Asimov, one of my favorite science fiction writers. He is the author of the Empire series, the Robot series (include the "I-Robot" account), and the Foundation series. And in his science fiction books in those series, he purposely left out aliens. So I was wondering about adapting his ideas to the Starfinder rules: a setting without aliens.
So I came up with a list of several character "race" options of what would be left if we removed aliens from the Starfinder setting (some of the 'examples' could fit in a different category, but I made my best guess). Now comes the challenge for creating these "homebrew" races. Some are already written up in the Starfinder rules, but I could use some help with the others (tweaking or creating). Here's the categories that I have so far:
Type I: Pure Strain Human (natural)
True humans conceived from unaltered gametes; also humans cloned from other standard humans are also standard humans. Examples include: Pure Strain Humans (Gamma World), humans (Pathfinder/Starfinder).
Source: Core Rulebook, p. 44-45
Type II: Clones
Same as natural humans only conceived through artificial means using existing DNA as its template. Examples include: “Tanks” (Space: Above and Beyond), Designer Babies, The Island, Clone Wars (Star Wars II), Picard/Shinzon (Star Trek Nemesis), Aeon Flux, The 6th Day, Oblivion, Multiplicity.
Type III: Augments/Transhumans (modified)
A sperm or egg with genetically-modified chromosomes makes a GMO-human, which could lead to speciation. Examples: “Augments” (Star Trek II; Enterprise), GATTACA, “Gelfs” (Genetically Engineered Lifeforms from Seaquest DSV), Touched by Vorlons (Babylon 5), Eloi/Morlocks (The Time Machine), the Fremen (Dune).
Type V: Mutants/Hybrids
They are humans that have been extensively modified with different species (such as adding gills, wings, fur, or other features) whether naturally, magically, or artificially. Examples include: Waterworld, The Island of Dr. Moreau, lycanthropy (werewolves), The Fly, X-Men series, Daleks (Doctor Who), Humanzee (chimpanzee/human hybrid).
Type VI: Uplifts
They are animals that have been extensively modified with human traits such as intelligence, speech, and tool-using capability. Examples include: “Ape” (Planet of the Apes), “Dolphins” “Chimps” “Gorillas” (David Brin’s Uplift War).
Source: Alien Archive 2, p. 16-17 (Uplifted Bear)
Type IV: Synthetics (Synthoid)
A biomechanical lifeform constructed to look human. They are constructed very similarly to their biological counterparts, but are silicon based lifeforms. They are not true GMOs; they are not genetic copy-paste. They are built from scratch using natural genomes as a guide, or spliced together from known genes. Examples: Rachel (Blade Runner_Synths), the twelve models (Battlestar Galactica 2004_Skinjobs), Splice, Elroy EL (Space: Above and Beyond_Silicates), David (Prometheus). It could also be argued that the synthetics from the Aliens series (Ash, Bishop, Call) are also synthetics since they 'bleed'. Synths are like the “Android” race from Pathfinder/Starfinder.
Source: Core Rulebook, p. 42-43
Type VII: Cyborgs
Beings with organic brains or intact nervous systems, but with machine body parts. Examples include: Officer Alex Murphy (RoboCop series), Star Wars, The Borg (Star Trek: First Contact_Borg), Cyberpunk 2077, Bionic Man).
Type VIII: Androids (“Droids”)
An artificial being constructed to resemble a human being and are difficult to distinguish by physical appearance. Mechanical brains with organic parts with sophisticated, but limited programming. Examples include Bicentennial Man, T-800s with organic camouflage (Terminator series), D.A.R.Y.L., Blade Runner_Worker models, Westworld androids.
Type IX: Mechanoids (full mechanical beings)
Fully mechanical being that resembles a human being; an automaton. Examples include: Pinocchio, Data/Lore (Star Trek), all of Asimov's other robots, the Toaster-cylons (Battlestar Galactica), Centurions (Battlestar Galactica), Terminator T-1000 & T-X, C-3PO, Sonny (I-Robot), Arthur (The Passengers), Cybermen (Doctor Who), and so forth.
Type X: Bots/Constructs/Golems
Fully constructed beings without “life” that obey commands (whether verbally given or programmed software) that do not resemble human beings. Examples include: R2D2 (Star Wars), Battle Droids (Star Wars), ED-209 (Robocop), Replicators (Stargate SG-1), TARS (Interstellar), Robby the Robot (Forbidden Planet), Robot (Lost in Space), Cylon Raider (Battlestar Galactica reboot), K-9 (Doctor Who), AMEE (Red Planet), Max (Flight of the Navigator), Johnny Cab (Total Recall), Twiki (Buck Rogers), Golems (fantasy games like Dungeons and Dragons).
Source: Alien Archive 1, p. 94-95 (Security Robot); Alien Archive 3, p. 86-87 (Robot), Alien Archive 2, p. 10-11 (Anacite), Alien Archive 2, p. 66-67 (Golem)
Type XI: Isomorph/Hologram (“Iso”)
A constructed, artificial being as a three-dimensional image formed by the interference of light beams and force fields from a laser or other coherent light source. Examples include: Quorra (Tron Legacy), The Doctor (Star Trek: Voyager).
Source: Alien Archive 3, p. 66-67 (Living Hologram)
Type XII: Pure Artificial Intelligence (A.I.)
A constructed set of programmed software with the capability of a computerized machine to imitate intelligent human behavior such as problem-solving and speech. Examples include: Skynet (the Terminator series), H.A.L. 9000 (2001: A Space Odyssey), VIKI (I-Robot), Mother (Alien), EDI (Mass Effect 3), Agent Smith (The Matrix series), Jarvus (Iron Man series), Andromeda (Andromeda series), W.O.P.R. (War Games), Simone (Simone).
** Undead are intentionally left out. I strongly dislike undead.
So any advice/insight on making these character classes balanced for Starfinder gameplay for a setting where there are no aliens in the universe? (and if I missed some other Starfinder source references that would be useful, please point those out, too). Thank you for your help.