PHB, Homebrew, MotM
The dwarves of Cisum live in a wide variety of environments. Many still live in the ancient mountain and hill cities of the continents, but other have found homes amongst the island regions like the Acapellago. The regions have shaped certain aspects of the dwarves over the centuries, but they do still share some thing in common. Most dwarves are stout of heart and bold in spirit. Many are excellent craftspeople, with their home regions adding a variety to the materials and specialities. Nearly all dwarves are fiercly loyal to their clans and nations. Dwarves are long-lived, though not as long as the elves. Their long lives and often quick tempers can lead to grudges that last for decades.
If playing using achievements and milestones, choosing this race at character creation grants the player the achievement "Hammer Time."
Darkvision. Accustomed to life underground, you have superior vision in dark and dim conditions. 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.
Dwarven Resilience. You have advantage on saving throws against poison, and you have resistance against poison damage.
Dwarven Combat Training. You have proficiency with the battleaxe, handaxe, light hammer, and warhammer.
Tool Proficiency. You gain proficiency with the artisan's tools of your choice: smith's tools, brewer's supplies, mason's tools, or carpenter's tools.
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.
Subrace. There are three main subraces of dwarves in Cisum: hill dwarves, island dwarves, and mountain dwarves. Choose one of these subraces.
As a hill dwarf, you have keen senses, deep intuition, and remarkable resilience.
Ability Score Increase. Your Wisdom score increases by 1.
Dwarven Toughness. Your hit point maximum increases by 1, and increases by 1 every time you gain a level.
As an island dwarf, you are more accoustomed to life at ground level and even on the sea. You're often leaner than the hill and mountain dwarves and are typically darker from time spent in the sun.
Ability Score Increase. Your Charisma score increases by 1.
Maritime Life. You gain proficiency with trident and net. You also gain a swim speed equal to your base speed.
As a mountain dwarf, you're strong and hardy, accustomed to a difficult life in rugged terrain. You're probably on the tall side (for a dwarf), and tend toward lighter coloration.
Ability Score Increase. Your Strength score increases by 2.
Dwarven Armor Training. You have proficiency with light and medium armor.