Sweet Sacrifices

Sweet Sacrifices is a Japanese adult fantasy visual novel which contains two interweaving storylines: Tentacle Princess Altea and Saint Bianca's Ceaseless Conception. Throughout the game, the player is periodically tasked with making choices which may influence where the story goes. The game features voice acting and contains graphic depictions of sex, mostly involving tentacles.

Tentacle Princess Altea follows the eponymous Princess Altea, who is known across the kingdom of Aquila for her beauty and purity. Though once revered by the people of Aquila, Altea's subjects turn against her when the kingdom suffers extreme water shortages, electing to have her sacrificed to the wicked sorcerer Aldebaran in an attempt to reverse the drought. While trapped in Aldebaran's mansion, Altea meets Deneb Swan, a princess from another kingdom who had also been sacrificed to the sorcerer. The two princesses must work together to escape the mansion and regain their freedom - though it is unlikely that either will leave with their purity intact.

Saint Bianca's Ceaseless Conception takes place in a different kingdom, where a holy saint named Bianka prepares to fulfil her destiny to conceive the Child of God and give birth to the one who is prophesized to defeat a great demon threat. However, before the prophets can bring their plans to fruition, Bianka is kidnapped by a demon lord, who plans to impregnate her with the seed of a demon instead. To this end, Bianka is violated by tentacles - lots and lots of tentacles - and she must find a way to escape the torture before it is too late.