This final thesis focuses on the analysis of cryptocurrency usage in the Republic of Croatia. Cryptocurrencies are digital currencies that utilize cryptographic techniques to secure transactions and control the creation of new units of currency. Recently, we have witnessed an increasing acceptance of cryptocurrencies, but our financial literacy lags far behind our computer literacy, exposing us to significant risks when investing in virtual currencies. In addition to conventional topics such as exams and outings, students and high schoolers are increasingly discussing cryptocurrencies. Their global popularity is undeniable, as evidenced by the fact that the country of El Salvador has adopted Bitcoin as its official currency, and an increasing number of businesses worldwide, including Croatia, accept digital currency payments. This is why cryptocurrencies have been chosen as the topic of this thesis. The thesis explores the current state of cryptocurrency implementation in Croatia, including the acceptance of cryptocurrencies as a means of payment. To clearly present the topic, methods such as comparison, synthesis, analysis, concretization, generalization, induction, and description will be employed. The introduction will provide an overview of the topic, followed by an introduction to various digital currencies. The concept of currency and cryptocurrencies will be defined, along with an explanation of their creation, history, the concept of cryptocurrency wallets, mining, and the identification of investment risks. Furthermore, the advantages and challenges of cryptocurrencies as an alternative to traditional currencies will be elucidated, as well as their application in Croatia. The main ideas and key thoughts will be synthesized in the conclusion.