In the Regni Settentrionali e Impero di Nilfgaard, when talking of razze, one means mostly one of the civilized, humanoid razze - umani, elfi, nani, gnomi e halflings. Of these, humans and elves are capable of interbreeding, thus producing Mezzelfi. Driadi are also a humanoid, but less civilized race.
While other intelligent and sentient creatures exist, they are much less similar to the aforementioned races than they are to each other, and thus are often thought of by people as mostri. Unicorno are a sentient race in the witcher universe. As witchers are mutants, they are sometimes also considered to be a separate "race".
Wiedźmin: Gra wyobraźni
In Wiedźmin: Gra wyobraźni, the word "race" is used to refer to playable creatures - humans, elves, dwarves, gnomes, halflings, witchers and dryads.
Nel gioco, the only playable character is the witcher Geralt. Witchers are arguably a race unto themselves, but the word "race" is used mainly to distinguish humans from non-humans. Races mentioned include elves, dwarves and gnomes.