A MUD "totally" written in Perl. It runs an engine which relies on a extensible Perl MudLib and interprets user-programmable scripts in a fashion that reminds the old-time LPC MUD, but now everything is in Perl. It uses Perl v.5.10.0 and SQLite 3.3.7.
CDNsim is a GNU/LINUX simulation tool for CDNs, written in C++ (core) and python (GUI wizard). It models: redirection policies, cache policies, TCP/IP, batch simulations, statistics extraction and more. CDNsim is uses the OMNet++ library