Popular games published by company D.O.

By the year 2000 an incurable disease has spread and men and women have become unable to have normal sex without vibrators. Hero is a designer of such vibrators. He comes to a new residential area as a sales agent.

A dating sim for PC.

Main character used to live with his father and after his death is taken care of by father's aunt. He now has cousins to call him "Onii-chan", but he's not used to warm human relations. His childhood friend calls protagonist to join mechanic repair club, but he only agrees to join with motivation to repair old bike left to him by his father. As he repairs bike, gets a driving license and a part-time job, his heart gradually starts to melt, and spring of his life begins.

Eroge RPG developed by D.O.

An adult RPG developed by D.O.

Fan disc to Family Project.