"Dawnguard" is an expansion for the popular video game The Elder Scrolls V: Skyrim. Released in 2012, it introduces a new storyline centered around the conflict between the Dawnguard, a group of vampire hunters, and the Volkihar Clan, a faction of vampires seeking to dominate the world. Players can choose to join either side, unlocking unique abilities and quests. The expansion also adds new locations, weapons, and creatures, enhancing the gameplay experience. Notable features include the ability to become a vampire lord, new shouts, and the introduction of crossbows. "Dawnguard" enriches the lore of Skyrim and expands its already vast universe.