Word Unknown is a captivating word game that combines elements of hangman and mastermind to deliver an enjoyable and straightforward gaming experience. Players aim to guess a randomly generated word with minimal moves by employing both lexical knowledge and deductive reasoning. Upon making a guess, the game provides feedback in the form of X's and O's, with each X indicating a correct letter in the right position and each O representing a correct letter in the wrong position. With five different difficulty levels based on word lengths and daily challenges for added competition, players can engage with friends in the pursuit of word mastery. Moreover, Word Unknown is not only entertaining but also free to play and open source.