GameCredits (GAME) is the mineable coin of the GameCredits project. The coin is listed on a few exchanges. You can trade GAME against USD on the BitBay exchange.
Polymath (POLY) is an ERC-20 token facilitating the payment process within the Polymath ecosystem. It is the native token of the Polymath platform. The token is listed on multiple exchanges.
NEM (New Economy Movement) is a blockchain-based platform for operation of mission-critical transactions for businesses. The platform has its own blockchain and a native token called XEM. NEM appeared on the market in 2015. Currently, it is one of the most successful blockchain projects hailing from Japan.