Super Mario Bros. X

Super Mario Bros. X, or SMBX, is a Mario fangame.

Streams
Super Mario Bros. X level contests were a Vinesauce tradition for a few years into Vinny's streaming career. One of the awards for SMBX2015 were free Steam funds.

Because of Nintendo's rigorous copyright claiming as well as the release of Super Mario Maker, the future of these contests is uncertain.

Trivia

 * A Cookie Clicker level was made in SMBX for the 2013 contest.