This is a mod of Warcraft3. To play this mod, you need to put all files(not folder) of Nirvana into the root directory of your war3 and run Nirvana.exe. The mod will not modify anything of your war3, which means you can still play the original war3 by running War3.exe.
There is a new race called NAGA in this mod. Also, there are a lot of new neutral heroes can be chose. Every race is added a new hero. Lots of war3's models(units, structures, trees, etc) are replaced with new models and skins.
Some of you may notice that there is an another version of Nirvana released on moddb by fucckz(we call him DumplingG). That is the English version of Nirvana and the latest version is 1.0. Unfortunately, it stops updating because fucckz has stopped working on that and he has left our team.
The Nirvana has both English and Chinese version. The English version does not consider balance. It is more like a combination of all new things. However the Chinese version puts more emphasis on balance. We have already held a game called NEL with the Chinese version.
If you can read Chinese, welcome! We will make English version website later. By the way, the website does not support small screen currently.
here is the English version of Nirvana
http://www.moddb.com/mods/warcraft-iii-mod-nirvana