Edit: Mall Auction
The Idea is simple here, just like an English Auction, it can be done in-game I assume or in the game website itself.
For Example, is the item being bid on, starting with 10 Rums, and it will last for 24 hours, when a person bids the time Adds +5 mins more so others can bid too incase it comes to the last 1 minute of the Auction.
Person A: Bids to 50 rums
Person B: Bids to 80 rums
Person A: Bids to 100 rums
Person C: Bids to 150 rums
Person D: Bids to 500 rums
When...