Super Mario Flashback is described as 'Fanmade ?Mario games that combines the mechanics of 2D and 3D Super Mario titles with beautiful graphics and an original soundtrack' and is an app. There are five alternatives to Super Mario Flashback for a variety of platforms, including Windows, Linux, Web-based, Android and Arch Linux apps. The best Super Mario Flashback alternative is Mushroom Kingdom Fusion, which is free. Other great apps like Super Mario Flashback are Mega Mario, TheXTech, Super Mario Bros. X and Super Mario Bros. X2.
Mushroom Kingdom Fusion is a (as yet unfinished: v0.7) non-profit fan-made platforming video game that is based on Super Mario Bros. It is a Crossover with elements, characters, and settings from a multitude of other video games.
Mega Mario is a Super Mario Bros. 1 clone. It features everything the original features - with better graphics, higher resolution, smoother movement and new levels. The story of Mario and Luigi continues, in old-school style.
TheXTech - is a platform game engine written in C++, is a full port of source code of SMBX 1.3 (Super Mario Bros. X fangame) which was originally written in Visual Basic 6. Created by Vitaliy Novichkov (known as "Wohlstand") after one month since the original SMBX...
Super Mario Bros. X 1.3.0.1 is a massive Mario fangame that blends elements from Super Mario 1, 2, 3 and World. It has many power ups, such as the Ice Flower, Hammer Suit, Tanooki Suit, Kuribo’s shoe, The Billy Gun, and Yoshi.
Super Mario Bros X2 (SMBX 2.0) is an evolution of Redigit's SMBX fan game engine with new playables, NPCs, blocks, game modes, and much more!.
