X is a game that will never stop growing and that you'll never get fed up with.
X is proof the latter as the fans themselves have developed it based on Super Mario 1, 2 and 3 and Super Mario World with all their famous enemies and characters. X (known as SMBX, Legacy Engine) - is a Mario fan game engine, written by Andrew Redigit Spinks in 2009.
Nintendo's legendary character has starred in hundreds of adventures and its fans never get fed up. 'While Joey’s forum does offer a lot of episodes, the site has only been running since 2014, and many SMBX episodes released between 20 were never reuploaded.