Classical credit cards where you make a purchase "on credit", receiving quick loans, are quite less common in Europe than "charge cards". With these you are charged the entire amount borrowed each month. With both, if you fail to pay back you will be subject to heavy fees or interest rates and can potentially even lose your card and harm your credit history.
Prepaid and debit cards draw directly on your account instead and there's not much difference between the two as long as the debit card is not attached to a bank account with overdraft enabled.
At VIABUY we started offering prepaid cards at first, while all new VIABUY cards are Debit Mastercard cards now. As we don't support overdrafts, it's obviously still pretty much "prepaid" though.
Please note, that the overall acceptance of both prepaid and debit cards is extremely high and usually merchants don't make a difference between prepaid, debit and credit cards. However, in rare cases some merchants do not support prepaid or debit cards or both.