With Marketplace Multi Vendor Module for Magento you can easy turn a Magento powered store into a marketplace complete with multiple vendors, products and payout settings.
Magento 2 Loyalty Points Extension
Magento 2 PayUMoney is easy to use payment gateway extension. Accept payments and make refunds and settlements with ease.
USAePay is a Level 1 PCI Compliant payment gateway for fast, secure and reliable electronic transactions.
It ensures safe transactions and protects both your customers and you. (FREE Installation)