TinTin++ is described as 'Aka tt++, is a free MUD client for Mac OS X, Linux, and Windows. The Windows port named WinTin++ (using the PuTTY derived mintty terminal) is available for those who do not use Cygwin (A Linux/Unix emulator for Windows) and runs on Windows Xp, Windows Vista, and' and is an app in the network & admin category. There are seven alternatives to TinTin++ for Windows, Linux, Mac, Android and Web-based. The best TinTin++ alternative is Mudlet, which is both free and Open Source. Other great apps like TinTin++ are MUME, Text Fiction, BlowTorch and Axmud.
Too many Pro's to list ;-)