An Event in Vampire Wars is a limited time spectacle which lets players collect rare Abilities, Avatar costumes, Familiars, and Mission Items. There are usually several Events happening at any given time.
A Seasonal Event is one that takes place during a certain time of year. This type of Event often includes other Events at the same time. An example of this is Halloween 2009.
See: Seasonal Events
A Portal Event, or Multi-Chapter Event, is one that takes the player to a faraway land or country to search for a mysterious stranger or object. Each Event requires the player to collect a specific Mission Item to complete missions. Each event has 7 rare Abilities; as a general rule there are 6 Chapters with 5 Missions each. An example of this is New York.
See: Portal Events
A Single-Mission Event is one that takes the player on a short quest where they work for or against a mythological character. They must also earn or purchase the related Mission Item to complete the mission. Each event has 3 rare Abilities; as a general rule there are 10 tiers per Mission. This type of Event has been discontinued. An example of this is Feed Santa's Starving Reindeer.
Akem's Gamble Events
An Akem's Gamble Event is one that adds several new Abilities to the gamble for a limited time, giving the player a chance to collect them within the timeframe. Each event has 5 rare Abilities. An example of this is Death Gods.
See: Akem's Gamble Events
A Sale Event is one which allows players to purchase old Abilities for cheaper prices, new Abilities for extravagent prices, retired Avatar costumes and Familiar sets. This type of Event often includes other Events at the same time. An example of this is Red Friday Sale (August).
See: Sale Events
A Gifting Event, or Ancient's Event, is one where the player's success or failure depends solely on the generosity of his Clanmates. Each event has 4 rare Abilities which are earned by collecting 30 each of the 3 Mission Items. An example of this is Get the Power of the Ancient.
See: Gifting Events