Road said:"Dept. Heaven" series:
[GBA] Riviera: The Promised Land (Sting) {2004.11.25} - 9,540 / 16,467*
[PSP] Riviera: The Promised Land (Sting) {2006.11.22} - 10,047 / 10,047*
[PSP] Riviera: The Promised Land - Special Edition (Sting) {2007.10.18} - 3,500 / 3,500*
[GBA] Yggdra Union (Sting) {2006.03.23} - 14,868 / 33,147
[PSP] Yggdra Union (Sting) {2008.01.24} - 17,304 / 41,347
[PSP] Yggdra Union (Sting the Best) (Sting) {2010.03.25} - 528 / 5,191
[NDS] Knights in the Nightmare (Sting) {2008.09.25} - 10,000 / 10,000
[PSP] Knights in the Nightmare (Sting) {2010.04.22} - 4,404 / 8,899
[PSP] Gungnir: Mayari no Gunshin to Eiyuu Sensou (Atlus Co.) {2011.05.19} - 16,355 / 24,098
Spin-offs:
[NDS] Yggdra Unison: Holy Sword War Tales (Atlus Co.) {2009.12.03} - 4,269 / 6,559**
[PSP] Blaze Union: Story to Reach the Future (Atlus Co.) {2010.05.27} - 8,491 / 16,341
[PSP] Gloria Union (Atlus Co.) {2011.06.23} - 8,933 / NEW
*Famitsu data only available; everything else is Media-Create.
**Famitsu has more up to date total of 16,111.
Thanks. Couldn't understand when people say it tanked. It's doing ok in comparison to their other games.