These are monster races that can be played as characters. Normally there is a level adjustment, and there is also normally significant social disadvantages. Most of the time monster races are hunted or enslaved in human society. All the monsters are from the Wizards of the Coast Monster Manual and are also Open Gaming Content. All of these monsters are know of by characters. The characters may very well have information that is incorrect, but they have a good chance of identifing these monsters by sight given some time to think.
There might be other races of humanoid monsters and intelligent monsters that are not know the world. Only a very small portion of the world has been explored, and an even smaller amount is under human control.
Unlike d20 D&D, there is only one type of giant. 20 to 30 feet tall
war with egyptians
war with egyptians
Kobolds are a lizard type creature, but with a dog shaped head. war with Roman Empire
mostly in warm swamps
large monster
Immune to plague. On going war with Greeks and Centaurs.
Trolls are as per Terry Pratchett's Discworld series. Trolls are large and made of stone. They become stone in the day light unless they use a special lotion to cover themselves. This lotion is normally only availiable in larger cities. Since they are a silicon based life form, their brain power is inversly related to temperature. Trolls are a natureal enemy of Dwarves. The inabillity to handle day light plus the temperature dependent intelligence makes them unsuitable as a player race.