From today through March 13th, players who take part in the Black Desert Online Shadow Arena battle royale experience and defeat five other players will "be rewarded with a copy of the game ($9.99 value)" just for their effort. The promotion is in celebration of Black Desert's third anniversary. Other events include a special quest series that rewards a +15 Cliff's weapon, a Special Card collecting mini-game that rewards in-game goodies and more.
Players can also leverage a new attendance reward event "so that all adventurers will be able to obtain their own beautiful tier-8 horse".
Learn more on the Black Desert Online anniversary microsite (not yet live).