A 32-bit Linux executable, and another for FreeBSD Unix. Each runs as an X program under the X Windowing System, or as a curses-style program on the console or terminals. It looks much like the DOS version of Epsilon, but provides most of the features of the Win32 GUI version. A 16-bit graphical Windows version designed for Windows 3.1. A 16-bit DOS version of Epsilon.
All versions share most customization files.
It also recognizes some variations on existing modes, such as .idl files. See the variable display-definition for details. Epsilon can also auto-fill comments as you type. Alt-' displays the functions and variables defined in the current file, in all modes that implement tagging. You can select one and move there.