Being originally based on the Ethereum blockchain, the Enigma (ENG) token has moved to the network’s own mainnet in 2019. As an ERC-20 token, it still can be traded on a number of exchanges against major crypto coins.
Nexus (NXS) coin is available on a few exchanges, including Binance. You can purchase NXS for BTC. This coin can be staked or mined and serves as the core cryptocurrency of the decentralized Nexus network.
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.