Lucifer is a free Android game developed by SuricatoTI, falling under the category of Lifestyle. It is a two-player game that allows you to ask questions and get an unexpected response from the demon. The game works in a simple way, where you have to enter a dot (.) in the ask box, followed by the word 'suricato' and then another dot. After that, you can complete the sentence by adding a question, and upon pressing the Ask button, the demon will answer it with the word 'suricato.'

One thing to note is that while typing your answer, the app simulates that you are typing a phrase, but it's actually storing what you're typing and showing it in the answer box. Overall, Lucifer is a fun game to play with your friends and family, and it can lead to some surprising and hilarious responses from the demon.