Similar to Ring_(プログラミング言語)

Alien (file converter)

Apache Axis

Apache OpenNLP

Apache POI

AppleWin

BootX (Apple)

Chrony

Courier Mail Server

Cowsay

CUPS

Cyrus IMAP server

Debian Almquist shell

DirectFB

Distcc

DSpace

Dvd+rw-tools

Device independent file format#DVI-to-PDF converters

Embedded GLIBC

FIGlet

Fluxbox