Android Super Mario is a free fan-made Android game developed by Mahesh Kurmi from India. At first, it was just an exercise program throughout his whole learning process to Android game programming. With the deepening of learning, it was eventually developed into a complete and professional game for Android platform.
Super Mario Bros. X (short for SMB-X or SMBx) is an excellent fan-made game originally developed by Andrew Sprinks (screen name: Redigit). It blended all the classic elements of Super Mario 1, 2, 3 and World along with many new added practical props, such as Ice Flower, Hammer Suit, Tanooki Suit, Kuribo's shoe, The Billy Gun, Yoshi, and more.
Super Mario Bros. 2 (short for SMB2J, ANA: Super Mario Bros.: The Lost Levels, スーパーマリオブラザーズ2, Sūpā Mario Burazāzu Tsū) was first released by Nintendo in 1986 originally for the Family Computer (Famicom) Disk System, as the direct and original sequel of Super Mario Bros. (1985), and specially for super players to challenge.
Secret Maryo Chronicles (short for SMC) is an open-source, cross-platform 2D side-scrolling Mario clone game, which was inspired by the famous Nintendo Super Mario Bros. series (especially the Super Mario World). It's written in C++ and based on OpenGL, supports Windows, Mac OS X, Linux (Unix) and many other platforms (can be easily ported).