Athanasy is a visual novel adventure game developed by WIRION. Set in a biopunk world, the game takes place in an underground maze of cramped streets known simply as the City. The protagonist, Josiah Kaviani, is a young mathematician and statistician who finds himself alone in this dark and eerie place. However, his life takes a fateful turn when he encounters something hidden in the depths of the City that is truly monstrous.

The game's world is well-written and unique, with a dark and frightening science fiction story based on real study. The complex and adult characters each have their own motives, aspirations, and skeletons in the closet. The game offers a variety of difficult choices that can lead to unexpected endings, ranging from bad to awful. The atmospheric soundtrack, specially written for the game, adds to the eerie and unsettling atmosphere.

Athanasy also includes a special art gallery where players can check their progress. It's worth noting that some of the author's ideas were censored for being too dark and cruel, but most of them remained in the game. Overall, Athanasy is a well-crafted adventure game that offers a unique and dark experience for those who enjoy biopunk and horror genres. The game takes around 5-10 hours to complete.