After making crypto currencies or tokens deposit to the games, in-game credits (or Chips in a way) will be show as the following:
Crypto Currency / Token
cXXXUSDT is a virtual in-game currency. It is converted from XXX token to gaming credits used in-game. During gameplay, cXXXUSDT is labelled in-game as USDT or USD. This swap has no impact on the market price and there's no fees. You can refer to cLUSDT about the calculations for deposits, withdrawals and average rates here.