"The game takes place in a medieval fantasy realm in which humans are fighting a losing war against the Orcs, a humanoid race. In order to fight back, the king needs to extract magical ore from mines, which can be used to forge more powerful weapons. Therefore he decides to send every man who has committed a crime to the ore mines.
The main character must complete quests and slay wild animals and monsters to earn skill points, which are used to increase basic attributes, improve skills, and learn trades. They are spent by finding the appropriate teacher. Several skills have only one "level" (Sneaking, Acrobatics), while the fighting skills (one-handed weapons, two-handed weapons, bows) have two proficiency levels. If the Hero chooses to be a Mage (or joins the Swamp Camp), he will be able to learn Circles of Magic; there are 6 of them. The main attributes are increased in 1 or 5 point increments, up to 100 (they start at 10). However, the limit can be surpassed with the use of potions.
Source: Wikipedia, "Gothic_(video_game)," available under the CC-BY-SA License.