Super Mario Bros X

Super Mario Bros. X (SMBX) is a Mario fangame where you can create and play your own levels.

SMBX was first released in 2009 by Redigit, and has subsequently received several updates over the last decade by a variety of teams and programmers. SMBX and its developers have no affiliation with Nintendo, nor do they claim to.

While this is the official website for SMBX, we are unable to officially distribute builds of the game. The most active fork of SMBX, titled Super Mario Bros. X2 (SMBX2), can be found here. This fork includes several cool features such as additional player characters and Lua scripting. You can also check out TheXTech, a cross-platform rebuild of SMBX. The SMBX team is not responsible for the content of any forks, ports, or rebuilds of the program.

The source code for SMBX version 1.3, without the copyrighted material it originally contained, is available on GitHub. No support is provided for this.

We encourage you to join the SMBX forums and Discord server to connect with other players and share resources. #fangame