Fall of Eden

Fall of Eden is a game in the vein of CoC, developed by Alder. Whilst exploring an abandoned house in your neighborhood, your player character discovers a magical gemstone that opens a gateway between worlds, pulling you through into a hellish plane infested with demons. Only the intervention of the goddess Aria saves you from becoming the plaything of the demon queen Uru, but in visiting her world, you have broken the seals keeping her foul minions imprisoned. Now lost in the world of Eden, you must find a way to stop Uru and her demons, lest they conquer the multiverse! (Wiki description)