Ghost Town Gunsweeper, a hentai RPG developed by T-ENTA-P, published by Red Dahlia Interactive. Released on October 7, 2012. Download on Nutaku.net for $12.00. For PC Windows. No voice acting.
From the makers of Shinobi Buster Mizuna, Ghost Town Gunsweeper is an adventure game that follows a team of ghostbusters! The group is searching a ghost town for the soul of the GEC director.
This title is an undying eroge classic.
Source: N4G PC [NSFW] Hentai Game Review: Ghost Town Gunsweeper