Age: Thri-kreen reach adulthood around age 14, rarely living longer than 75 years.

Speed: Your base walking speed is 30 feet.

Darkvision: You can see in dim light within 60 feet of you as if it were bright light, and in Darkness as if it were dim light. You can’t discern color in Darkness, only shades of gray.

Languages: Common, Thri-kreen. The latter is an inaudible language involving touching antennae.


Choose a caste for your character: Worker caste, soldier caste, or fertile caste.



Members of this caste are genderless.

Size: Medium (4'-5' tall).

Ability Score Increase: Your Constitution score increases by 2, due to an impressive endurance for labor.

Excellent Climbers: You can walk along walls of up to a 90 degree slant, at a base walking speed of 30'. This requires the use of all 4 major limbs, although the two minor limbs can still be used for other purposes. Basically, weapon use is not an option while climbing in this way.

Tremor Sense: When on solid ground, you can detect if moving creatures exist within a 60' radius. One cannot sense the number nor location of creatures, and stealthing creatures may require a contested stealth vs perception roll in order to be detected.

Stonecunning: Whenever you make an Intelligence (History) check related to the origin of stonework, you are considered proficient in the History skill and add double your proficiency bonus to the check, instead of your normal proficiency bonus.

Proficiencies: Mason's tools, War pick



Members of this caste are genderless.

Size: Medium (6'-7' tall).

Ability Score Increase: Your Strength score increases by 2.

Thick Carapace: Your base armor class is increased by 1.

Toughness: Your maximum hit points is increased by 1 for every experience level.

Proficiencies: Battleaxe, Net, Light and medium armor.



This caste is typically refered to as "founders".
Eloquent and born to lead. This minority caste contains members of each gender.

Size: Medium (5'-6' tall).

Ability Score Increase: Your Charisma score increases by 2, and your Wisdom score increases by 1.

Flight: You have wings, which can be used to fly for 1 round, holding up to your carrying capacity while doing so. If timed correctly this can reduce a fall to a safe landing. Your flying speed is 40'. You cannot fly again until completing a long rest.

Tutored Upbringing: You gain proficiency in two skills of your choice.

Languages: You may learn 1 extra language of your choice.