MarketPress E-commerce can convert your normal WordPress website to a marketplace where you can sell digital or physical products without any additional plugin or add-ons. It has more than 15 inbuilt payment system which makes it very easy to accept payments. You can create Etsy-style eCommerce network with Quality Tax and VAT settings.
This is the EXACT same plugin as distributed by the developer on WPMU DEV. The developers’ links are provided above.