http://www.do-game.co.jp/ used to beD.O.'s website, but it looks like the server (and presumably the company) vanished in 2025.
Crystal Rinal
Heart de Ron
Legend of Rouge
Record of Strange Beast War 2 - The Dawn Soldiers
Record of Strange Beast War -2048-
Record of Strange Beast War Kasutami
Record of Strange Beast War Senki
Touch My Heart