There are many reasons why SMBX is still be in demand for a long time after original author stopped development:
- The concept of the game is a sort of the community sandbox, which people do use to craft own levels and episodes, share them around forum and other places, and play them together.
- Game is interested by hackers who attempts to modify/extend it, and since 2013 the LunaDLL as the first hack over SMBX got been made. Later it grown into LunaLua and X2 project got been build over it.
- Developers like me, Rednaxela, Axiom, Sambo, Docapoper, Kil, etc., developed various helper tools and kits that simplifies the work with SMBX resources
- There are alternative engines got been developed independently: Moondust Engine is the first working attempt (if not count the SMB:R and VSMBX prototypes made in the past) to re-implement the SMBX-compatible game engine which wasn't finished yet (and soon it will be rewritten); SMBX-38A game developed by 5438A38A Chinese guy and released since 2015; later mentioned X2 - the major extension mod over original game got been released; and TheXTech, the modern cross-platform boosted source port of original SMBX Engine got been released at 2020 after one month since original source code got been published after long time.