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.
Dash was launched in 2014 and changed several names before becoming Dash as we know it today. The initial goal of the project was to create a cryptocurrency network which would operate faster and cheaper than Bitcoin and would be capable to maintain more privacy. Holders of large amounts of Dash have different privileges (Instant Send, Private Send, etc).
Dash is an open-source project. It has its own blockchain. The currency is supported by many crypto wallets and it has gained significant market capitalization. Another great achievement is its numerous partnerships including cooperations with Western Union, web stores, etc.
Credits (CS) cryptocurrency was launched in 2018. Being originally based on cryptocurrency Ethereum protocol, this cryptocurrency underwent a swap to the native mainnet. As a result, there are two assets are functioning at the same time: ERC20 CS token and CS coin. Credits token can be purchased in the number of exchanges for cryptos and is available with various wallet applications.