According to ITAD this is the all time lowest price for this game.
From the website:
The protagonist finds himself mysteriously transported to Terra, a fantasy world empowered by magical crystals. Not long after arriving does he run into Leanna, a Mage-Knight investigating rumors of concentrated energy in the area… which she learns is radiating from him! Together, they journey to understand how he got here and a way for him to return home. They soon discover that his arrival to Terra is more than just a coincidence!
Crystalline is a comedy-centric, fantasy adventure, visual novel with an intricate romance system. With hundreds of choices available, you can experience the storyline and interact with characters in a much more personalized way.
Key Features
Your Story
A choice heavy visual novel set in an expansive fantasy world. With hundreds of decisions leading to branching paths, a uniquely personalized story will unfold.
Full Relationship-Sim
Your decisions and behavior organically shape your relationships and what party members feel about you over time. A romantic bond may even be forged with one particular character!
Complete Voice Over
Crystalline features a full English voice cast for not only your main party, but also all side and extra characters.
Fully Animated Sprites
Crystalline features Live2D® technology to bring characters to life! Experience unrivaled immersion with facial expressions and body language all animated seamlessly.
Explore the world of Crystalline!
Enjoy!