I cannot get out of FB game **** LIFE !

Good day HelloPeter. There is a game on Facebook called **** Life. It recruits players thru possible deception. I inadvertently joined the game after a friend invited me. I did not know what it was about. It traps one into the game. Thereafter I started receiving messages from FB friends with all sorts of **** Life messaged ie '*** stole your money', whereafter one is expected to respond. These messages are becoming more frequent, and has the potential to clutter up my FB messages inbox. I have sent a message to various FB friends 'HOW DO I GET OUT OF **** LIFE". No workable answer yet. Other FB friends have messaged me that they are also trying to get out of **** Life, but they do not know how. I clicked on the three horozontal line (above right) on a FB page, and some how got a drop-down which says 'Games your friends play. I clicked on **** Life, expecting to get to a page where I could have the option of quitting the game. That did not happen. what actually happened is that it immediately recruited me and downloaded the game AGAIN on my laptop. I was not asked whether I wanted to join the game. This is unacceptable and deceiving. This game has the potential of recruiting FB users without their consent, and thus overwhelming FB users with messages they do not want or need. Please investigate this. Thank you.