Archives of Nethys

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The Starfinder Roleplaying Game is about more than just meeting aliens—it’s also about playing alien characters. In Starfinder, the word “race” usually refers to an intelligent, selfaware species whose members can be considered characters rather than simple monsters. While not all races are appropriate for player characters, many of them are; any creature with a racial traits entry is a member of a potentially playable race, provided that your GM approves it.


Source Alien Archive pg. 68
Humans often compare kalos to bats due to the thin membranes between their arms and legs. In fact, these winglike structures are fins, allowing kalos to swoop with grace and speed through the icy waters of the Brethedan moon of Kalo-Mahoi. Kalo skin has a blue-green tinge and is translucent in places. Their bulging, glowing eyes can move and focus independently.

Highly civilized and generally peaceful, kalos were the first residents of any moon to successfully win independent Pact Worlds recognition, and today, many of their coral-encrusted underwater vent cities feature air-filled spaces for terrestrial dignitaries and expatriates, with trading outposts studding the ocean world’s crusty shell of surface ice. While kalos primarily rely on sonar as they glide wraithlike through the dark oceans, their cities are riots of colored lights—testaments to the culture’s rich artistic tradition.

Few kalos lack an artistic or scholarly hobby, and though not overly tied to tradition, most kalos take pride in their history, giving their children and organizations names harkening back to ancient tribal practices. Members of military units are often given evocative names like “sharkhunters” despite their modern responsibilities. Those in traditional roles such as that of the mystical deepspeaker, who converses with—and can even command—creatures of the depths, are less necessary in the age of executives and prime ministers, yet these sages are still often sought out as arbitrators and mediators for both community and governmental disputes.

Although slower out of water, kalo warriors are renowned for their calm precision in battle, especially in zero-g and underwater, and known for using cryo weapons against enemies of other races, trusting their natural resistances to protect them from friendly fire. The average kalo is 5-1/2 feet tall and weighs 100 pounds.

Ability Modifiers +2 Dex, +2 Wis, -2 Con
Hit Points 2

Size and Type

Kalos are Medium monstrous humanoids with the aquatic subtype, meaning they require water to breathe.

Cold Resistance

Kalos are used to swimming in icy water and have cold resistance 5.

Kalo Movement

Kalos have a base speed of 20 feet and a swim speed of 50 feet.

Kalo Vision

Kalos’ innate sonar grants them blindsight (sound) 60 ft., while their specialized eyes grant them low-light vision.

Stealthy Swimmers

Kalos gain a +4 bonus to Stealth checks when in water.

Water Breathing

Kalos have the water breathing universal creature rule.

Vital Stats

Average Height 5–6 ft.
Average Weight 75–125 lbs.
Age of Maturity 18 years
Maximum Age 100+3d10 years