Will you ever make a Linux version? Macintosh? BeOS?
Yes, starting with the serendipity release, the OHRRPGCE runs on Linux. Since zenzizenzic it also runs on Mac OS X. It should run on any Intel/x86 distribution of Linux or Intel Mac. FreeBasic can also compile for FreeBSD, XBox, Android, and CPUs other than x86-compatible.
A very old DOS version of the OHRRPGCE is still available, so you can run it in a DOS emulator like DosBox, but unfortunately it is rather slow. It's also missing all the new features added in recent years.