During your time on station you may find yourself face to face (or face to mirror) with the not quite human. Be they aliens, mutated humans, or self aware constructs you're expected to try and coexist on this deathtrap
Learning their quirks can be key to knowing how to keep them amicable in times of peace, and easy to put down in times of strife.

Roundstart Races

On tgstation, these are the races allowed to be chosen at round start. Because they are freely available, you should expect to deal with them nearly every round.

Humans

On the station humans enjoy a degree of superiority over other races, everyone you meet in a position of power will generally be a human. By default, the AI will apply the protections of its laws ONLY to humans, though they may extend that protection to other races out of preference provided doing so doesn't harm humans. Should a conflict arise between a human and another race, expect the AI to take the human's side.

Benefits

AI Protection under the default Asimov lawset.
Domination of Command Jobs.
Strength in numbers.

Drawbacks

None at all.

Where to find them:

Everywhere.

Lizardpeople

Second class citizens, lizards are generally relegated to lower level work. Within a department a lizard staff member may enjoy anywhere from almost equal standing to obvious racism and disrespect, depending on their coworkers. They enjoy few advantages beyond their striking appearance.

Benefits

Memorable appearance.
Solidarity with lizards staffmates.

Drawbacks

Likely target of racism.
Noticeable lisssp.
Non-human to the AI.

Where to find them:

Everywhere but command department.

Plasmaman

A recently discovered race that inhabits orbital bodies with high concentrations of Plasma.
Plasmamen have a hard time living on oxygen based space stations as they breathe pure Plasma as their air supply, thus they wear special environmental suits to protect them.
They have almost no advantages mechanics wise, and must rely on their skill and respect to get by.

Benefits

They stand out.
Can use their bodies drawback of setting on fire offensively to scare off attackers.
Flash-proof, welding-safe helmet.
Immune to cold, viruses, and radiation.
Can't bleed.
Does not need to eat.

Drawbacks

They stand out, badly.
Likely target of racism.
Move slowly, due to their jumpsuits.
They rely on a constant source of Plasma air to survive.
If exposed to Oxygen their body will catch on fire.
150% damage from heat and fire.
They are stuck inside an environment suit.
Can't drink or eat through helmet, so dependent on injections and patches.
No easy ability to hide their identity.
The AI and its minions are almost always free to maim or kill you if you are seen harming a human.
Can be cloned, but incompetent medical staff will always fuck it up.
Cannot be defibrillated.

Where to find them:

Everywhere aside from any command, security or entertainment department.

Flypeople

Walking abominations of mishmatched DNA caused by teleporter malfunctions. Careful use and upgrading of the teleporter can assure those that dabble with it don't end up in this sorry state.
Like the lizard races, there's absolutely nothing redeemable about existing like this, unless you just enjoy being a freak.

Benefits

None.

Drawbacks

Buz-zz-zing lisp.
Grotesque appearance.
Eats vomit.
Badly hurt by pest spray.
BADLY hurt by fly swatters.

Where to find them:

Near a teleporter.

Human Mutants

Over the course of a shift, you or someone you know may lose their humanity. These races are not born, but made.
These players are less likely to be the targets of racism, as many may simply acknowledge their former humanity, but are none the less NOT human anymore.

Podpeople

Human blood, resurrected through a plant. Podpeople are rare to see, often only making an appearance if the cloner has been destroyed or the power is out for an extended period of time. They thrive in light and can't survive darkness for too long.

Benefits

Gradually heals and gains nutrition in well lit areas.
Immune to plant-based hazards such as space vines and killer tomatoes.
Bees don't mind them.

Drawbacks

Darkness drains nutrition.
If starving, takes damage over time.
Tendency to be overweight due to desire to stay in the light at all times.
Extra vulnerable to chemicals designed to kill plant life.
Takes extra burn damage and heats up quickly.
Mutates if shot by a floral somatoray in mutation mode.

Where to find them:

Hydroponics.

Jelly Mutants

These races are created in Xenobiology by ingesting mutation toxin.
Further ingestion has a chance to mutate a slimeperson into a Stargazer or Luminescent.

Slimepeople

Former humans who were converted to slime by mutation toxin.
Many scientists working in xenobiology will undergo this mutation willingly to work closer with their slimes, but others may mass produce the toxin and try to push it on others.
Their bodies are composed of a toxic slime, which shouldn't be consumed by other races.

Benefits

Anything that would deal toxin damage (for example, Plasma) will heal toxin damage instead.
Full immunity from the wrath of hungry slimes.
Toxic blood that can poison others if ingested.
Immunity to viruses and bleeding out.
Take half damage from heat, fire, and laser weaponry.
Can split themselves to create spare bodies.
- To split they need to acquire slime jelly; they generate it either by being well fed or by taking toxin damage (which heals them). Toxin healing chemicals will remove blood at a fast rate.
- Reaching 1100 jelly volume will let you split once, and reset you to 600.
- They can swap between bodies at will as long as they're conscious; dying in your current body will still kill you, being unconscious in one will trap you in that body.
Can grow limbs back using their slimelike blood.

Drawbacks

Lose limbs when blood volume is low.
Take toxin damage from chemicals that would normally cure it. This will also drain blood, and thus causes loss of limbs.
Nonhuman to the AI.
Large hunger from jelly production.
Take double damage from sources of cold.

Where to find them:

Xenobiology.

Jellypeople

Bizarre three eyed beings with innervated skeletons immersed in a jelly frame.
Their appearance is ghastly and utterly alien, though for some strange reason they almost seem nostalgic. They are functionally equivalent to slimepeople in all regards.

Benefits

The same as Slimepeople.

Drawbacks

Same as Slimepeople.
Extremely nonhuman looking.

Where to find them:

Xenobiology

Stargazers

Stargazers are the telepathic branch of jellypeople, able to project psychic messages and to link minds with participants.

Benefits

Can privately and anonymously "send thoughts" to any target they see.
Aggressive grabs let them form a hivemind with the target. This will expire on death or species change.
Can split bodies, same benefits as slimepeople.

Drawbacks

Same as regular slimepeople.

Where to find them:

Xenobiology.

Luminescents

Luminescents are able to consume and use slime extracts, without them decaying.

Benefits

Emit a faint glow
Can absorb slime cores to gain special abilities.
- Each core has a minor and a major ability.
- Activating them has a cooldown instead of using up the core.
- You can only have one core absorbed at once.
The same as regular slimepeople.

Drawbacks

Can't split into separate bodies.
Same as regular slimepeople.

Where to find them:

Xenobiology.

Construct Races

These races were never human to begin with, rather they were made without any original human to convert.
They are decidedly even LESS human in the eyes of many, and are frequently mistrusted as a result.

Golems

Lumbering people of shining stone, golems are born into the servitude of their creators. While some will immediately gift these golems with freedom others will keep them close as assistants, bodyguards, or attack dogs. Golems do not have a will of their own unless granted one by their creator, and are not directly responsible for their actions if commanded. Free golems found on Lavaland function equivalently to their station-born counterparts; however, they are not compelled to serve anyone.

Golems have unique benefits and drawbacks, depending on the type of mineral they're made of.

Benefits

Spaceworthy, can't be dismembered or bleed out.
Immune to the effects of radiation and viruses.
Most golems punch hard and resist brute damage well.
For mineral specific benefits, see: Types of Golems

Drawbacks

Bound to will of creator unless freed.
Most are much slower than humans.
Immune to cryogenic drugs, can't give or receive CPR
Can't equip most clothing. Not really a drawback since golems don't really need it.
The only guns they can use are modified Kinetic Accelerators.
Often prejudiced against and slain without mercy by the station at first sign of trouble.
For mineral specific drawbacks, see: Types of Golems

Where to find them:

Xenobiology.
Lavaland.

Exotic Races

These races have very few ways to come about, and often rely on very rare situations to exist at all.
You will almost never have to deal with them, but should be aware of them all the same for when the time comes.

Skeletons

The skeleton within, unleashed! Somehow still alive, a skeleton is just a sack of stark white bones.
Clattering spooks, due to their supernatural qualities they're almost always associated with wizards.
Skeletons enjoy a wide selection of useful immunities, just don't expect the crew to ever enjoy looking at you ever again.

Benefits

Don't need to breathe.
Aren't bothered by extreme temperatures and pressure.
Have no blood to lose.
Are immune to the effects of radiation, as well as viruses.
Immune to item embedding and chemical injections.
Do not need to eat.
Can attach limbs from the ground without surgery.

Drawbacks

Loses limbs easily.
Too spooky for most to tolerate.
Immune to medical injections

Where to find them:

With wizards, on the station on Halloween.

High-functioning Zombies

Unlike the zombies you find in movies, these high-functioning zombies don't crave your brains (despite what they might be compelled to say sometimes).
It's perfectly possible to coexist with these zombies, though understanding their slurring speech might drive some to wish it wasn't.

Benefits

Don't need to breathe.
Can survive in extreme pressures.
Immune to cold.
Have no blood to lose.
Are immune to the effects of radiation.
Can attach limbs from the ground without surgery.
Immune to Changeling transmutation stings.

Drawbacks

Loses limbs easily.
Hard to understand.
Ugly.
Tends to be confused with the infectious kind of zombie.

Where to find them:

With wizards, on the station on Halloween.

Romerol Zombies

Rotted remains of former humans, brought way less back to life. Unlike the zombies you find in Xenobiology, Romerol zombies aren't just a human mutation.
They are aggressive by nature, and spread an infection when hitting other humanoids, causing them to turn into Romerol zombies on death.

They also won't stay dead as long as the infection is active and their head is intact: to stop them permanently, the body must be destroyed or beheaded, or the infection must be surgically removed.
If this does not happen, the zombie will revive at full health after some time.

The infection is concentrated in a tumor located in the brain. Should this tumor be removed surgically, the body will revert to a normal corpse, which can then be cloned.

Benefits

Same as regular zombies.
Strong claws that can even punch through airlocks.
Revives after death unless decapitated or gibbed.
Quickly heals wounds.
Can see in the dark.
Turn other species into romerol zombies on death.

Drawbacks

Slow movement.
Can only use claws to smash.
(Rightfully) feared and hunted by crewmembers.

Where to find them:

On the station, after traitors team up to buy Romerol or get lucky with a surplus crate.

Shadowpeople

Cursed beings of darkness, shadows that cannot exist for long in the light. They skulk in darkened maintenance corridors or in workplaces with intentionally destroyed lighting. They are not intrinsically evil, but still invoke an understandable level of mistrust in pretty much everyone.

They share many of the passive effects of Shadowlings, but none of their innate spells or abilities. They are far less a threat.

Benefits

Gradually heals in the dark.
Don't need to breathe.
Have no blood to lose.
Are immune to the effects of radiation.
Can see far in the dark.
Immune to viruses.

Drawbacks

Will perish in the light.
Generally impossible to maintain a normal life on the station.

Where to find them:

In the darkness. Also Xenobiology.

Synths

Humanoid robots, disguised as an organic race. When damaged enough, their fake flesh will fall off and has to be repaired with synthflesh.

Benefits

Immune to all chemicals but synthflesh.
Does not need to breathe.
Immune to viruses.
Can't be dismembered.
Does not need to eat.
Gains all the passive bonuses/immunities of the race they're disguised as, until the disguise falls.

Drawbacks

Usually valid. Expect the crew to attack you if you're revealed as synth.
Disguise falls if you take more than 25 damage.
Can only heal with synthflesh.

Where to find them:

Only if the ~~admins~~ gods spawn them.

Military Synths

A special type of synth. In addition to classic synths, it has:

25% natural armor against all damages.
High punch damage, with 50% chance of stunning on hit.
Need to take 50 damage instead of 25 for the disguise to fail.

Androids

Humanlike robots, distant cousins of synths. While visually identical to a fully augmented human, it has some additional perks.

Benefits

Does not need to breathe, immune to gases and viruses.
Immunity to pressure, cold and heat, can't be set on fire.
Does not bleed.
Does not need to eat.
Cannot be pierced by syringes or glass.
Can repair brute damage with welding and burn damage by replacing wires.

Drawbacks

Cannot heal brute and burn damage with conventional means.
Paralyzed and heavily damaged by EMPs.

Where to find them:

Robotics

Abductors

Alien beings sent here to probe the station's crew. They cannot speak normally, but instead use a special frequency tuned to their mothership: different abductor teams have separate channels. Abductors created in different ways share a common abductor channel instead, and cannot hear natural abductors.

Benefits

Does not bleed.
Does not need to breathe.
Is immune to viruses.
Can use abductor-specific equipment.
Can see in the dark for short ranges.
Can communicate without restrictions with fellow abductors.

Drawbacks

Can't use guns, except the one they start with.
Cannot be heard by non-abductors when speaking.

Where to find them:

Abductor ships