Disgaea 3 can be somewhat hard to find. If you are in the US, some GameStop stores still carry D3. Your best bet might be to check online retailers. Nippon Ichi's own website would be a good start.
so far there are 12, im not certan of disgaea 2 and 3, but the anime disgaea with laharl, there are only 12.
Level 100
You can purchase a lot of different Disgaea games on Amazon.com.
The game "Disgaea: Afternoon of Darkness" played on PSP has been adapted into a manga called Disgaea or in romanji Makai Senki Disgaea. There is also a Disgaea 2. So, yes, it is a manga.
Disgaea Infinite happened in 2009.
Mugen Keitai Disgaea was created in 2004.
Disgaea 3 Absence of Justice - 2008 VG was released on: Japan: 31 January 2008 USA: 26 August 2008
Disgaea Infinite was created on 2009-11-01.
The Disgaea anime is just one season with 12 episodes.
Yes, there is one based on the game. it's called Makai Senki Disgaea.
So far, there is only one: Disgaea DS
My opinion is "Disgaea Afternoon Of Darkness" so far but i am trying to get to play all of the games.