The auction system in the Slaughter Game was launched alongside the Game Square and the shopping center. Players could pay a commission fee to entrust the auction house with equipment they wished to auction. They would add information tags to the equipment (such as Divine Artifact, Perfect Level item, or Skill Scroll), set a starting bid, and a buyout price, with the latter being higher than the former.
When the auction started, other players who had followed the relevant item tags would receive a text message from the auction house.
Players interested in purchasing had to enter the Game Square to participate in the bidding. If a player immediately bought the item at the buyout price when the auction began, the auction ended directly. If there was no buyout, the auction proceeded to the normal bidding process. The Slaughter Game's auction system was mandatory:
Players without enough Game Coins in their inventory automatically lost their bidding qualifications.
